M106, chiamata anche NGC 4258, dista dal nostro pineta 23,5 milioni di anni luce ed è visibile in direzione della Costellazione dei Cani da Caccia. La galassia Messier 106, con al suo centro un buco nero supermassiccio, divora voracemente materia immettendo intense radiazioni. Il suo piano galattico, con i suoi bracci di spirale, è intersecato da altri due insoliti bracci di spirale formati da idrogeno surriscaldato, probabilmente generati dai materiali espulsi dal buco nero supermassiccio. La dimensione di quest'ultimo, è di circa 10 volte più grande di quello della nostra galassia.

Le sue "Vicine di casa", ma solo per via prospettica, sono NGC4248, NGC4231, NGC4232, in foto in alto a sinistra NGC4217 distante da noi 60 milioni di a.l.

Riprese del 06/04/2024

Telescopio di Acquisizione: Celestron EdgeHD 11"

Camere Di Acquisizione: ZWO ASI178MC COOL

Montature: JTW Astronomy Trident GTR

Filtri: Antlia Triband RGB Ultra Filter - 2.00'' Mounted

Accessori: Starizona HyperStar 11 v4 (HS4-C11)

Software: Adobe Photoshop · Pleiades Astrophoto PixInsight

Telescopio di Guida: SVBony SV106 60mm Guide Scope

Camere Di Guida: ZWO ASI224MC

Antlia Triband RGB Ultra Filter - 2.00'' Mounted: 303×60,″(5h 3′)

Integrazione: 5h 3′

Giorno lunare medio: 26.90 giorni

Fase lunare media: 7.61%

Campionamento: 0,917 arcsec/pixel

astrob.in/mzhci3/0/

M106 lies at a distance of 23.7 million light years from Earth and has an apparent magnitude of 9.1. It has the designation NGC 4258 in the New General Catalogue.

Due to x-rays and unusual emission lines detected, it is suspected that part of the galaxy is falling into a supermassive black hole in the center.

M106 is one of the largest and brightest nearby galaxies, similar in size and luminosity to the Andromeda Galaxy.

- Hutech modified Canona EOS 6D

- Celestron NexStar 8GPS

- Guided with an Orion StarShoot Auto Guider

- Focal lenght: 2000mm @ f/10

- 39 x 300s = 3h15' @ ISO1600

- Stacked with Fitswork

- Processed with Photoshop

M106 (ou NGC 4258) est une galaxie spirale située dans la constellation des Chiens de chasse, comme nombre de ses "petites" cousines.

Setup :

Télescope : Newton Sky-Watcher 200/1000 HEQ5 Pro GOTO - Correcteur de coma SW0264

APN : Nikon D600 (au foyer) - ISO 800

Guidage : Kit Star Guider 50mm - Caméra I-nova PLB-Mx2 - Logiciel PHD Guiding 2

Navigation : Stellarium - pointage EQMOD,

Acquisition : DigiCamControl

Empilement : DeepSkyStacker

Développement : Lightroom 5

Temps de pose : 21 x 300s = 1h45mn

M106 Spiral galaxy.

Also in the wide field image can be seen several other galaxies. NGC 4248 is close and to the left of M106. At 24 million light years, it's thought to be a companion galaxy to M106.

To the left of NGC 4248 are two very faint galaxies, they are NGC 4231 & 4232.

To the upper left, appearing edge on to us, is NGC 4217. Some 60 million light years away from us. If you view the Hubble Space Telescopes image of NGC 4217, then in the background you will see many, many more fainter galaxies!

Just slightly to the upper right of NGC 4217 can be found yet another galaxy, NGC 4226. This one estimated at 334 million light years away!

Equipment was:

Skywatcher 8" Quattro with f4 aplanatic coma corrector on HEQ5 pro mount, guided.

Canon 450D astro modded with Astronomik CLS CCD APS-C clip filter.

2 sets of data captured over the 2nd & 3rd of April.

M106, also known as NGC4258, UGC7353 and PGC39600.

"Messier 106 is an intermediate spiral galaxy in the constellation Canes Venatici. It was discovered by Pierre Méchain in 1781. M106 is at a distance of about 22 to 25 million light-years away from Earth. M106 contains an active nucleus classified as a Type 2 Seyfert, and the presence of a central supermassive black hole has been demonstrated from radio-wavelength observations of the rotation of a disk of molecular gas orbiting within the inner light-year around the black hole."

- Wikipedia

Shooting Location :

* 51° N 3° E

* bortle class 5 backyard

Object Information

* Type : Spiral Galaxy

* Size : 135,000 lightyears in diameter

* Magnitude : 8.4

* Location (J2000.0): RA 12h 18m 57s / DEC +47° 18' 14"

* Approximate distance : 7.3 million parsecs / 23.7 million lightyears

Hardware

* Mount : Celestron CGX

* Imaging Scope : TS Optics 80mm f/6 APO FPL53

* Imaging Camera : ZWO ASI 183MM

* Filter Wheel : ZWO EFW 7*36mm + Baader Ha 7nm, Baader OIII 8.5nm + Baader SII 8.5nm + Baader LRGB

* Corrector : TS-Optics Flattener/Reducer 0.79x

* Guide Scope : Omegon 50mm f/4

* Guide Camera : ZWO ASI 290MM

Exposures

* Gain : 111

* Sensor Temperature : -20°C

* Light Frames :

- Baader Luminance : 152x 180sec

- Baader Red : 32x 180sec

- Baader Green : 32x 180sec

- Baader Blue : 32x 180sec

* Flat Frames :

- Baader L : 30x

- Baader R : 30x

- Baader G : 30x

- Baader B : 30x

* Dark Frames : 100x

* Total Integration Time : 12h36m

* Capture Dates : 2020-03-21 & 2020-03-25

Capture Software

* ZWO ASIair (Original)

Processing Software

* PixInsight

* AstroPixelProcessor

* Topaz Denoise AI

* Adobe Photoshop

M106 is a spiral galaxy located in Canes Venatici constellation; is 22-25 million light-years far from Earth. It is a giant one, getting luminosity and size levels near M31’s. M106 has an active nucleus classified as Type 2 Seyfer due to a detected X-ray emission. It ’s suspected that parts of the galaxy are falling in super-massive black hole placed on the galaxy’s center.

M106 belongs to The Canes Venatici Group II, a group of galaxies about 26 million light-years from Earth. Being the biggest of the group, M106, is surrounded by by, between others, NGC4248, NGC4217, NGC4232 or NGC4231. The wide FOV of this image allows to see a big portion of Canes Group II, showing us the big amount of galaxies belonging to it. Many objects NGC and PGC can be detected (see annotated image).

Technical data:

Remote Observatory "FarLightTeam"

Team: José Esteban, Jesús M. Vargas, Bittor Zabalegui, Marc Valero

Telescope: Takahashi FSQ106 ED 530mm f/5

CCDs: QSI683 wsg8

Filters: Baader Planetarium - LRGB

Mount: 10Micron GM1000 HPS

Imaging Software: Voyager

Processing Software: PixInsight

Processing: Marc Valero

Imaging Data:

Hosting "E-EYE Entre Encinas y Estrellas”

(Fregenal de la Sierra ) Badajoz, Spain.

L: 60 x 900"

RGB: 30 x 300” (each)

Image resolution: 2,1 arc”/pixel

#M106 cluster

Final version

It includes also the galaxies: #NGC4248, #NGC4231, #NGC4232, #NGC4217, #NGC4226

55 lights 180 sec. Gain26 + 80 Lights 240 sec Gain 26

30 darks

30 bias

30 (dark) flats

#idaslpsd2 Filter

#qhy268c f4 #celestroncgxlmount#

#astrophotography #universetoday #milkyway #astrophoto #astrography #nightsky #nightscaper #starphotography #starscape #natgeospace #starrynight #longexposure #astro_photography #deepsky #galaxy #neustadtanderweinstrasse #astrobin #baaderplanetarium #jw #jwphotography

M106 is a spiral galaxy located in Canes Venatici constellation; is 22-25 million light-years far from Earth. It is a giant one, getting luminosity and size levels near M31’s. M106 has an active nucleus classified as Type 2 Seyfer due to a detected X-ray emission. It ’s suspected that parts of the galaxy are falling in super-massive black hole placed on the galaxy’s center.

M106 belongs to The Canes Venatici Group II, a group of galaxies about 26 million light-years from Earth. Being the biggest of the group, M106, is surrounded by by, between others, NGC4248, NGC4217, NGC4232 or NGC4231. The wide FOV of this image allows to see a big portion of Canes Group II, showing us the big amount of galaxies belonging to it. Many objects NGC and PGC can be detected (see annotated image).

Technical data:

Remote Observatory "FarLightTeam"

Team: José Esteban, Jesús M. Vargas, Bittor Zabalegui, Marc Valero

Telescope: Takahashi FSQ106 ED 530mm f/5

CCDs: QSI683 wsg8

Filters: Baader Planetarium - LRGB

Mount: 10Micron GM1000 HPS

Imaging Software: Voyager

Processing Software: PixInsight

Processing: Marc Valero

Imaging Data:

Hosting "E-EYE Entre Encinas y Estrellas”

(Fregenal de la Sierra ) Badajoz, Spain.

L: 60 x 900"

RGB: 30 x 300” (each)

Image resolution: 2,1 arc”/pixel

NGC 4258 (M106)

Trying the Starpx online tool for processing images to see how well it copes, because calibration files are not necessarily required. In this image, several galaxies are visible, with the two most prominent being the Seyfert spiral galaxy NGC 4258 and the edge-on spiral galaxy NGC 4217. Also visible are the barred spiral galaxy NGC 4248 (left of the NGC 4235), lenticular galaxy NGC 4231, spiral galaxy 4232 (located further to the left in close proximity) and another barred spiral galaxy NGC 4226 to the right of NGC 4217

Imaging session: March 25, 2025

Sky quality:l Bortle 5 (approx.)

Mount: iOptron CEM40G

OTA Imaging: Skywatcher 120ED with x0.85 flattener, f6.35, 768mm

Camera: ZWO ASI533MM Pro, Cooled to -10 deg C

Filter Wheel: ZWO EFW Mini

Focuser: Primaluce Lab ESATTO

Rotator: Primaluce Lab ARCO

Guiding: iOptron iGuide, 120mm: 2.9um

Computer: Primaluce Lab Eagle Pro 2 + ECCO2 (Environment)

Light Exposures:

Luminescence .. 20 x 240s

Red ........... 20 x 240s

Green ......... 20 x 240s

Blue .......... N20 x 240s

Total integration time: 5.3hours

Center (RA, Dec): 2h 17m 50.88s

Center (RA, hms): +47° 14' 41.92"

Pixel scale: eg 1.01 arcsec/pixel

Orientation: 336°

Field radius: 0.8°

Processing

Starpx online processing tool and Photoshop

Messier 106. After nearly a month of no imaging because of bad weather, We wanted an easy, fun target and it's been a few years since we last visited M106. This image has been framed to capture 5 other galaxies in the vicinity. Messier 106 (also known as NGC 4258) is an intermediate spiral galaxy in the constellation Canes Venatici. M106 is at a distance of about 22 to 25 million light-years away from Earth. It is one of the largest and brightest nearby galaxies, similar in size and luminosity to the Andromeda Galaxy.

03-04/04/2023

027 x 300-second exposures at Unity Gain (139) cooled to -10°C

55 x dark frames

030 x flat frames

100 x bias frames

Binning 1x1

Total integration time = 2 hours and 15 minutes

Captured with APT

Guided with PHD2

Processed in Nebulosity and Photoshop

Equipment:

Telescope: Sky-Watcher Explorer-150PDS

Mount: Skywatcher EQ5

Guide Scope: Orion 50mm Mini

Guiding Camera: Zwo ASI 120 MC and SVBONY SV105 with ZWO USBST4 guider adapter

Imaging Camera: Zwo ASI 1600MC Pro with anti-dew heater

Baader Mark-III MPCC Coma Corrector

Filter: Optolong L-Pro

M106 crop from original image.

M106 is a spiral galaxy located in Canes Venatici constellation; is 22-25 million light-years far from Earth. It is a giant one, getting luminosity and size levels near M31’s. M106 has an active nucleus classified as Type 2 Seyfer due to a detected X-ray emission. It ’s suspected that parts of the galaxy are falling in super-massive black hole placed on the galaxy’s center.

M106 belongs to The Canes Venatici Group II, a group of galaxies about 26 million light-years from Earth. Being the biggest of the group, M106, is surrounded by by, between others, NGC4248, NGC4217, NGC4232 or NGC4231. The wide FOV of this image allows to see a big portion of Canes Group II, showing us the big amount of galaxies belonging to it. Many objects NGC and PGC can be detected (see annotated image).

Technical data:

Remote Observatory "FarLightTeam"

Team: José Esteban, Jesús M. Vargas, Bittor Zabalegui, Marc Valero

Telescope: Takahashi FSQ106 ED 530mm f/5

CCDs: QSI683 wsg8

Filters: Baader Planetarium - LRGB

Mount: 10Micron GM1000 HPS

Imaging Software: Voyager

Processing Software: PixInsight

Imaging Data:

Hosting "E-EYE Entre Encinas y Estrellas”

(Fregenal de la Sierra ) Badajoz, Spain.

L: 60 x 900"

RGB: 30 x 300” (each)

Image resolution: 2,1 arc”/pixel

M106 and at least 8 neighbouring (on sky) galaxies such as NGC 4217, NGC 4248, NGC 4226, NGC 4232 and NGC 4231 .

Skywatcher 200p on NEQ6 mount, with guiding and dithering. Canon 100d modified DSLR with Optolong CLS-CCD filter. 37 five minute exposures at ISO 800 (3 hours 5 minutes), 5 dark frames, 10 flat fields, 14 bias frames.

24th April 2020.

Overnight temperatures were a bit higher than winter, leading to more noise in the image. Worth a return visit!

M106 (The main galaxy) and at least 12 more smaller galaxies in Canes Venatici. The brighter companion galaxy is NGC4217.

Skywatcher Explorer 200P

NEQ6 Pro

EOS1100D (astro mod) + CLS clip filter

Skywatcher coma corrector

Guided with QHY5 mono finder/guider + IR/UV cut filter

25x 300s RGB @ ISO800

6x 600s RGB @ ISO800

(total 3h 05m)

+ darks + flats + dark flats + bias frames

Stacked in DSS and processed in Pixinsight (trial) & CS3

1600 x 1025 resolution here.......... www.flickr.com/photos/shoulderops/8653068986/sizes/h/in/p...

M106, also known as NGC4258, UGC7353 and PGC39600.

"Messier 106 is an intermediate spiral galaxy in the constellation Canes Venatici. It was discovered by Pierre Méchain in 1781. M106 is at a distance of about 22 to 25 million light-years away from Earth. M106 contains an active nucleus classified as a Type 2 Seyfert, and the presence of a central supermassive black hole has been demonstrated from radio-wavelength observations of the rotation of a disk of molecular gas orbiting within the inner light-year around the black hole."

- Wikipedia

Shooting Location :

* 51° N 3° E

* bortle class 5 backyard

Object Information

* Type : Spiral Galaxy

* Size : 135,000 lightyears in diameter

* Magnitude : 8.4

* Location (J2000.0): RA 12h 18m 57s / DEC +47° 18' 14"

* Approximate distance : 7.3 million parsecs / 23.7 million lightyears

Hardware

* Mount : Celestron CGX

* Imaging Scope : TS Optics 80mm f/6 APO FPL53

* Imaging Camera : ZWO ASI 183MM

* Filter Wheel : ZWO EFW 7*36mm + Baader Ha 7nm, Baader OIII 8.5nm + Baader SII 8.5nm + Baader LRGB

* Corrector : TS-Optics Flattener/Reducer 0.79x

* Guide Scope : Omegon 50mm f/4

* Guide Camera : ZWO ASI 290MM

Exposures

* Gain : 111

* Sensor Temperature : -20°C

* Light Frames :

- Baader Luminance : 152x 180sec

- Baader Red : 32x 180sec

- Baader Green : 32x 180sec

- Baader Blue : 32x 180sec

* Flat Frames :

- Baader L : 30x

- Baader R : 30x

- Baader G : 30x

- Baader B : 30x

* Dark Frames : 100x

* Total Integration Time : 12h36m

* Capture Dates : 2020-03-21 & 2020-03-25

Capture Software

* ZWO ASIair (Original)

Processing Software

* PixInsight

* AstroPixelProcessor

* Topaz Denoise AI

* Adobe Photoshop

Messier 106 is a spiral galaxy in the constellation Canes Venatici. It it approximately 23 million light years away from us. NGC4217 is approximately 60 million light years distant. NGC4321 and NGC4232 can be seen below and to the left of M106. These two galaxies are approximately 340 million light years from us. Several other even more distant galaxies are also visible in this image.

The image consists of 4 1/2 hours of 120 second exposures with a 2600MC Pro camera and an Askar 151PHQ telescope. All processing was carried out in PixInsight.

Nell'emisfero boreale i mesi di fine inverno e primaverili sono la stagione delle galassie per noi astrofili.

Purtroppo però è anche il periodo di maggiore instabilità meteorologica, e proprio quest'anno nei mesi tra febbraio e aprile il cielo è stato spesso coperto o molto nuvoloso durante la notte.

Quando la situazione meteo è migliorata mi sono dedicato ai gruppi di galassie e in questo caso alla galassia "M106", conosciuta anche con la sigla "NGC 4258", e dintorni. Infatti nel campo inquadrato si trovano molte altre galassie tra le quali "NGC 4217", "NGC 4220", "NGC 4248", "NGC 4231" e "NGC 4232".

Per cercare di contrastare l'Inquinamento luminoso (Bortle 5-6) ho utilizzato il filtro Astronomik CLS, che non m ha aiutato molto a causa dell'illuminazione a LED. Quindi le 13h di integrazione non sono bastate per gestire bene soprattutto il background, che per essere accettabile mi ha costretto a scurirlo oltremodo. Ho fatto del mio meglio con gli strumenti a disposizione raggiungendo un discreto risultato

__________

In the Northern Hemisphere, the late winter and spring months are the galaxy season for us amateur astronomers.

Unfortunately, however, it is also the period of greatest meteorological instability, and this year in the months between February and April the sky was often overcast or very cloudy during the night.

When the weather situation improved I dedicated myself to galaxy groups and in this case to the galaxy "M106", also known by the acronym "NGC 4258", and its surroundings. In fact, in the field of view there are many other galaxies including "NGC 4217", "NGC 4220", "NGC 4248", "NGC 4231" and "NGC 4232".

To try to counteract light pollution (Bortle 5-6) I used the Astronomik CLS filter, which did not help me much due to the LED lighting. So the 13 hours of integration were not enough to manage well especially the background, which to be acceptable forced me to darken it excessively. I did my best with the tools available achieving a decent result.

by Google translator

Optic: APO Refractor Askar 103APO + 0.6X

Camera: ZWO ASI533MC-Pro

Mount: Sky Watcher HEQ5 Synscan

Seeing: 4-5 (scala Antoniadi)

Filter: Astronomik CLS+ SVbony UV-IR cut

-262x180s 250gain /23 dark /21 flat / 18 darkflat /80 bias (CLS)

t° sensor: -10°C

Date: 30/04/2025, 1-2-3/05/2025

Integration: 13h 6min

Temperature: 12°C (media)

location for : Biancavilla -Catania-(Italy) 515m slm (Bortle 5-6)

Acquisition: NINA, PHDGuiding

Processing: DSS, SIRIL, PS, GraXpert.

Stellar magnitude > 20th (GAIA-DR3).

Second processing to improve the quality of the stars:

M106 is a spiral galaxy located in Canes Venatici constellation; is 22-25 million light-years far from Earth. It is a giant one, getting luminosity and size levels near M31’s. M106 has an active nucleus classified as Type 2 Seyfer due to a detected X-ray emission. It ’s suspected that parts of the galaxy are falling in super-massive black hole placed on the galaxy’s center.

M106 belongs to The Canes Venatici Group II, a group of galaxies about 26 million light-years from Earth. Being the biggest of the group, M106, is surrounded by by, between others, NGC4248, NGC4217, NGC4232 or NGC4231. The wide FOV of this image allows to see a big portion of Canes Group II, showing us the big amount of galaxies belonging to it. Many objects NGC and PGC can be detected (see annotated image).

Technical data:

Remote Observatory "FarLightTeam"

Team: José Esteban, Jesús M. Vargas, Bittor Zabalegui, Marc Valero

Telescope: Takahashi FSQ106 ED 530mm f/5

CCDs: QSI683 wsg8

Filters: Baader Planetarium - LRGB

Mount: 10Micron GM1000 HPS

Imaging Software: Voyager

Processing Software: PixInsight

Imaging Data:

Hosting "E-EYE Entre Encinas y Estrellas”

(Fregenal de la Sierra ) Badajoz, Spain.

L: 60 x 900"

RGB: 30 x 300” (each)

Image resolution: 2,1 arc”/pixel

Processing by Jesús M. Vargas

M106 is a bright spiral galaxy lying about 25 million light years distant in the constellation Canes Venetici. Numerous smaller galaxies are visible in this photo, some which are satellites of M106. The brightest is the edge-on galaxy NGC 4217, which has a prominent dust lane down the center. The bright satellite of M106 is NGC 4248.

Takahashi Sky 90 at f/4.5

SBIG STL-4020M (self-guided)

Takahashi EM-200

Hutech LPS filter

Luminance: 24x5 minutes

RGB: 12x3 minutes binned 2x2 (each channel)

Processed with Maxim/DL and Photoshop CS3

Noel Carboni's Astronomy Tools

M106 is a spiral galaxy located in Canes Venatici constellation; is 22-25 million light-years far from Earth. It is a giant one, getting luminosity and size levels near M31’s. M106 has an active nucleus classified as Type 2 Seyfer due to a detected X-ray emission. It ’s suspected that parts of the galaxy are falling in super-massive black hole placed on the galaxy’s center.

M106 belongs to The Canes Venatici Group II, a group of galaxies about 26 million light-years from Earth. Being the biggest of the group, M106, is surrounded by by, between others, NGC4248, NGC4217, NGC4232 or NGC4231. The wide FOV of this image allows to see a big portion of Canes Group II, showing us the big amount of galaxies belonging to it. Many objects NGC and PGC can be detected (see annotated image).

Technical data:

Remote Observatory "FarLightTeam"

Team: José Esteban, Jesús M. Vargas, Bittor Zabalegui, Marc Valero

Telescope: Takahashi FSQ106 ED 530mm f/5

CCDs: QSI683 wsg8

Filters: Baader Planetarium - LRGB

Mount: 10Micron GM1000 HPS

Imaging Software: Voyager

Processing Software: PixInsight

Processing: Marc Valero

Imaging Data:

Hosting "E-EYE Entre Encinas y Estrellas”

(Fregenal de la Sierra ) Badajoz, Spain.

L: 60 x 900"

RGB: 30 x 300” (each)

Image resolution: 2,1 arc”/pixel

Spiral Galaxy in Canes Venatici

Seven galaxies in one shot. Okay, so not exactly the Hubble Deep Field (en.wikipedia.org/wiki/Hubble_Deep_Field) but not bad for a couple of hours from light-polluted London as opposed to 10 days from low Earth orbit. The weather conditions weren't ideal for galaxy spotting but good enough to capture some objects in the constellation Canes Venatici. This shot could have done with more exposure but guiding issues and having to re-do the polar alignment and then line-up the target again shortened the amount of time for collecting data as the sky got ever more hazy. In this image North is approximately to the left. The largest galaxy is M106 (also known as NGC 4248), an intermediate spiral galaxy about 22 to 25 million light-years away from Earth. NGC 4217, an edge-on spiral galaxy which lies approximately 60 million light-years away, is a possible companion galaxy. NGC 4220 is estimated to be 58.4 million light-years away. NGC 4226 is 383 million light years away. NGC 4231 and NGC 4232 are a pair of spiral galaxies about 340 million light years away from us and appear to be almost touching each other. Below them and above M106 is NGC 4248, another spiral galaxy located about 24 million light-years away from us.

More information can be found here:

en.wikipedia.org/wiki/Messier_106

en.wikipedia.org/wiki/NGC_4217

in-the-sky.org/data/object.php?id=NGC4220

in-the-sky.org/data/object.php?id=NGC4226

astro.i-net.hu/node/9

www.spacetelescope.org/images/potw1730a/

032 x 180 second exposures at Unity Gain (139) cooled to -20°C

054 x dark frames

046 x flat frames

100 x bias/offset frames

Total integration time = 1 hour and 36 minutes

Captured with APT

Guided with PHD2

Processed in Nebulosity, Fitsworks, and Photoshop

Equipment

Telescope: Sky-Watcher Explorer-150PDS

Mount: Skywatcher EQ5

Guide Scope: Orion 50mm Mini

Guiding Camera: ZWO ASI120MC

Imaging Cameera: ZWO ASI1600MC Pro

Baader Mark-III MPCC Coma Corrector

Light pollution filter

Six galaxies in one shot! All of them can be found in the constellation Canes Venatici. The larger galaxy on the left of the frame is Messier 106 (also known as NGC 4258), a spiral

galaxy, the others are possibly companion galaxies. M106 was discovered by Pierre Méchain in 1781. It is about 22 to 25 million light-years away from Earth. It is also a Seyfert II galaxy. Due to x-rays and unusual emission lines detected, it is suspected that part of the galaxy is falling into a supermassive black hole in the center. It is one of the largest and brightest nearby galaxies, similar in size and luminosity to the Andromeda Galaxy.

NGC 4217 is an edge-on spiral galaxy which lies approximately 60 million light-years away. NGC 4248 (also known as UGC 7335) is a spiral galaxy 25 million light years away from Earth. NGC 4231 is a spiral galaxy. The sky object was discovered on 9 March 1788 along with its neighbour the barred spiral galaxy NGC 4232 by the astronomer William Herschel. NGC 4226 is a spiral galaxy discovered in 1828 by British astronomer John Herschel, the son of William Herschel.

20 x 8 minute exposures at 400 ISO

11 x dark frames

10 x flat frames

21 x bias/offset frames (subtracted from flat frames only)

Guided with PHD

Processed in Nebulosity and Photoshop

Equipment:

Celestron NexStar 127 SLT

GoTo AltAz mount with homemade wedge

Orion 50mm Mini Guide Scope

ZWO ASI120 MC imaging and guiding camera

Canon 700D DSLR

M106 is a spiral galaxy located in Canes Venatici constellation; is 22-25 million light-years far from Earth. It is a giant one, getting luminosity and size levels near M31’s. M106 has an active nucleus classified as Type 2 Seyfer due to a detected X-ray emission. It ’s suspected that parts of the galaxy are falling in super-massive black hole placed on the galaxy’s center.

M106 belongs to The Canes Venatici Group II, a group of galaxies about 26 million light-years from Earth. Being the biggest of the group, M106, is surrounded by by, between others, NGC4248, NGC4217, NGC4232 or NGC4231. The wide FOV of this image allows to see a big portion of Canes Group II, showing us the big amount of galaxies belonging to it. Many objects NGC and PGC can be detected (see annotated image).

Technical data:

Remote Observatory "FarLightTeam"

Team: José Esteban, Jesús M. Vargas, Bittor Zabalegui, Marc Valero

Telescope: Takahashi FSQ106 ED 530mm f/5

CCDs: QSI683 wsg8

Filters: Baader Planetarium - LRGB

Mount: 10Micron GM1000 HPS

Imaging Software: Voyager

Processing Software: PixInsight

Imaging Data:

Hosting "E-EYE Entre Encinas y Estrellas”

(Fregenal de la Sierra ) Badajoz, Spain.

L: 60 x 900"

RGB: 30 x 300” (each)

Image resolution: 2,1 arc”/pixel

Target: M106 Spiral Galaxy

OSC with basic light pollution filter + Ha from dual narrow-band filter. I could not locate a name other than Spiral for this galaxy, It is also cataloged as NGC4258. Other features in frame are NGC4217, NGC4226, NGC4231, NGC4232, NGC4248. It is located in the constellation Canes Venatici, about 25 million light-years away from Earth.

Gear:

Mount: ZWO AM5

Main Cam: ZWO ASI294MC Pro @ gain 121 and 14F

Guide Cam: ZWO ASI120MM Mini with ZWO 30mm f/4 scope

Telescope: Askar 103APO w/ 1.0x flattener - 700mm f/6.8

Filter: Baader Moon and Skyglow Broadband light pollution

Filter: Antlia ALP-T Dual Narrowband 5nm Ha and Oiii

Acquisition:

Light frames: Broadband - 80 3 minute subs for 4:00 integration

Light frames: Ha - 25 5 minute subs for 2:05 integration

Sessions: 19-Feb-2024

Moon: 82% waxing gibbous

Location: Houston Suburban back yard, Bortle 8?

Processing:

• Register the NB and BB masters

• Split channels of NB - keep only the red - relabel ha

• Split channels of BB - keep all three - relabel red, green, blue

• Remove Stars from ha image, no need to create star image

• Open ha starless, Open Pixel Math to create new image-

• ((ha*85)-(red*5))/(85-5)

• Where 5 is the bandwidth of filter

• Rename new_ha

• Make a clone of new_ha

• Open STF clip the shadows to really isolate the ha nebula

• Open HT move STF to HT and apply to new_ha_clone

• Use Range Selection to create a mask in order to protect the red

• Open red channel and apply the mask

• Open Pixel Math to add ha to red

• $T+(new_ha-Med(new_ha))*8

• Replace target image

• Put together channel into RGB

• SPCC

• BTX and NTX and STX un-screen

• Stretch starless, curves on saturation and small rgb/k s-curve, unsharp mask

• Stretch stars, curves on saturation

• Take starless to Photoshop ACR contrast, highlights, black level, watermark

M106, NGC 4217, NGC 4226, NGC 4231, NGC 4232, NGC 4248

Date: 03-31-2013

Telescope (Lens): Orion 8in f/3.9 Newtonian Astrograph

Addition Optics: Baader Planetarium RCC1 Coma Corrector

Camera: Canon XSi

Exposures: 40 x 150 sec (ISO 400) + Darks x10 ,Flats x10, & Dark Flats x10, & Bias x 10

Processing: DeepSkyStacker, Photoshop

Mount: Atlas EQ-G

Tracking: EQMOD / Stellarium / PHD Guiding

Guidance Camera: Microsoft Lifecam 3000HD

Guidance Scope:Stellarvue SVR 80ED Raptor

Astromomy weather as forcasted by Canadian Meteorological Center:

Cloud Cover: Clear

Transparancy: Above Average

Seeing Category: IV (Above Average)

Temp: 45°F

Humidity: 67°

Light Pollution: "Red" - Based on Light Pollution Map

Galaxy Messier 106 and other galaxies - close up crop. M106 is a semi-barred spiral, the largest of the Canes II Galaxy Group, part of the same Local Supercluster that the Milky Way belongs to. It is a Seyfert Galaxy - it has a supermassive black hole (39 million solar masses) at the centre which is quite active. The pic shows traces of the jets of matter emitted from the black hole which excites gas, causing it to emit light (the red Ha emission out of the plane of the spiral arms). The red Ha emission in the spiral arms is indicative of star forming regions.

Barred Spiral Galaxy M106, NGC 4258.

Distance: 23.7 million lyrs

Diameter: 135,000 lyrs

Angle subtended: 18.6x7.2 arcmin

Magnitude: 9.1

Constellation: Canes Venatici, The Hunting Dogs

Other companion and line of sight galaxies are also present - some of the brightest below, but there are others in the frame (very dim):

1. right, bottom of centre is galaxy NGC 4248 (distance 17.1 million lyrs, diameter 6,000 lyrs, 1.3x0.5 arcmin, Mg 12.5)

2. far right, bottom of centre are the galaxy pair NGC4232 (top, 333 Mlyrs,1.2x0.5 arcmin, Mg 13.2) and NGC 4231(bottom, 340 Mlyrs, 0.8x0.6 arcmin, Mg 13.6)

3. Top, far right (uncropped pic) is galaxy NGC 4226 (334 Mlyrs, 1.1x0.5 arcmin, Mg 13.5)

4. Centre, just above M106, is dwarf galaxy galaxy UGC 7356 (PGC 39615) visible as a faint blur (22 Mlyrs, 0.9x0.8 arcmin, Mg 15.1)

Details:

Photograph taken in Ha, R, G, B astronomik filters. Total exposure time 11.8 hrs (8.3 w/out R).

R 1x1 bin - 42x300s = 3.5hrs, 28 May 2023, scope East side, prime focus

G 1x1 bin - 53x180s = 2.7hrs, 03 June 2023, scope East side, prime focus

B 1x1 bin - 73x180s = 3.7 hrs, 04 June 2023, scope East side, prime focus

Ha 1x1 bin - 23x300s = 1.9hrs, 05 June 2023, scope East side, prime focus

Rig:

Imaging scope: SW Startravel 150mm F5 Refractor, Baader Diamond Track, 2.5x Celestron Luminos 2inch imaging barlow, Atik 460EX mono

Guide scope: SW Evostar 90mm F10, with guiding XY stage, ZWO 120MM camera

Guiding: 2 stage PHD: high frequency guide scope (mount tracking) and low frequency OAG image train guiding (guidescope flex)

Mount: Home made German Equatorial pillow block mount, permanently rooftop mounted. Spring loaded DEC axis gearing.

Other gadgets: ST4 based anti vibration shutter, ST4 based PEC

Processing:

PixInsight: Lights, Darks, Flats, Biases, Align Calibration, Linear fit, BXT, Channel Combination, SCNR(G). StarNet2 star removal/star layer

GradXpert: Gradient removal

Topaz DeNoise AI: Noise removal

Affinity Photo: 32 bit image processing (curves, high pass masking, selective colour)

Galaxy Messier 106 and other galaxies - 30 arcmin FoV. M106 is a semi-barred spiral, the largest of the Canes II Galaxy Group, part of the same Local Supercluster that the Milky Way belongs to. It is a Seyfert Galaxy - it has a supermassive black hole (39 million solar masses) at the centre which is quite active. The pic shows traces of the jets of matter emitted from the black hole which excites gas, causing it to emit light (the red Ha emission out of the plane of the spiral arms). The red Ha emission in the spiral arms is indicative of star forming regions.

Barred Spiral Galaxy M106, NGC 4258.

Distance: 23.7 million lyrs

Diameter: 135,000 lyrs

Angle subtended: 18.6x7.2 arcmin

Magnitude: 9.1

Constellation: Canes Venatici, The Hunting Dogs

Other companion and line of sight galaxies are also present - some of the brightest below, but there are others in the frame (very dim):

1. right, bottom of centre is galaxy NGC 4248 (distance 17.1 million lyrs, diameter 6,000 lyrs, 1.3x0.5 arcmin, Mg 12.5)

2. far right, bottom of centre are the galaxy pair NGC4232 (top, 333 Mlyrs,1.2x0.5 arcmin, Mg 13.2) and NGC 4231(bottom, 340 Mlyrs, 0.8x0.6 arcmin, Mg 13.6)

3. Top, far right (uncropped pic) is galaxy NGC 4226 (334 Mlyrs, 1.1x0.5 arcmin, Mg 13.5)

4. Centre, just above M106, is dwarf galaxy galaxy UGC 7356 (PGC 39615) visible as a faint blur (22 Mlyrs, 0.9x0.8 arcmin, Mg 15.1)

Details:

Photograph taken in Ha, R, G, B astronomik filters. Total exposure time 11.8 hrs (8.3 w/out R).

R 1x1 bin - 42x300s = 3.5hrs, 28 May 2023, scope East side, prime focus

G 1x1 bin - 53x180s = 2.7hrs, 03 June 2023, scope East side, prime focus

B 1x1 bin - 73x180s = 3.7 hrs, 04 June 2023, scope East side, prime focus

Ha 1x1 bin - 23x300s = 1.9hrs, 05 June 2023, scope East side, prime focus

Rig:

Imaging scope: SW Startravel 150mm F5 Refractor, Baader Diamond Track, 2.5x Celestron Luminos 2inch imaging barlow, Atik 460EX mono

Guide scope: SW Evostar 90mm F10, with guiding XY stage, ZWO 120MM camera

Guiding: 2 stage PHD: high frequency guide scope (mount tracking) and low frequency OAG image train guiding (guidescope flex)

Mount: Home made German Equatorial pillow block mount, permanently rooftop mounted. Spring loaded DEC axis gearing.

Other gadgets: ST4 based anti vibration shutter, ST4 based PEC

Processing:

PixInsight: Lights, Darks, Flats, Biases, Align Calibration, Linear fit, BXT, Channel Combination, SCNR(G). StarNet2 star removal/star layer

GradXpert: Gradient removal

Topaz DeNoise AI: Noise removal

Affinity Photo: 32 bit image processing (curves, high pass masking, selective colour)

equip: SW80ED with ATIK320e (from Minneapolis, MN) Lights: 10x300s, Darks: 3x300s, Flats: 20x1.5s, Bias: 13x0.001s

Same data acquired previously here, but added dark/flat/bias frames and lightened up on the lower-end of the histogram to better expose the outer regions of the galaxy. Also realized that in addition to NGC4248, I also captured NGC4231 and NGC4232 in the far upper right of frame which show up much better now.

Does anyone know what the dim fuzzy in in the lower center?

Plate solved and annotated: Galaxy Messier 106 and other galaxies - 30 arcmin FoV. M106 is a semi-barred spiral, the largest of the Canes II Galaxy Group, part of the same Local Supercluster that the Milky Way belongs to. It is a Seyfert Galaxy - it has a supermassive black hole (39 million solar masses) at the centre which is quite active. The pic shows traces of the jets of matter emitted from the black hole which excites gas, causing it to emit light (the red Ha emission out of the plane of the spiral arms). The red Ha emission in the spiral arms is indicative of star forming regions.

Barred Spiral Galaxy M106, NGC 4258.

Distance: 23.7 million lyrs

Diameter: 135,000 lyrs

Angle subtended: 18.6x7.2 arcmin

Magnitude: 9.1

Constellation: Canes Venatici, The Hunting Dogs

Other companion and line of sight galaxies are also present - some of the brightest below, but there are others in the frame (very dim):

1. right, bottom of centre is galaxy NGC 4248 (distance 17.1 million lyrs, diameter 6,000 lyrs, 1.3x0.5 arcmin, Mg 12.5)

2. far right, bottom of centre are the galaxy pair NGC4232 (top, 333 Mlyrs,1.2x0.5 arcmin, Mg 13.2) and NGC 4231(bottom, 340 Mlyrs, 0.8x0.6 arcmin, Mg 13.6)

3. Top, far right (uncropped pic) is galaxy NGC 4226 (334 Mlyrs, 1.1x0.5 arcmin, Mg 13.5)

4. Centre, just above M106, is dwarf galaxy galaxy UGC 7356 (PGC 39615) visible as a faint blur (22 Mlyrs, 0.9x0.8 arcmin, Mg 15.1)

Details:

Photograph taken in Ha, R, G, B astronomik filters. Total exposure time 11.8 hrs (8.3 w/out R).

R 1x1 bin - 42x300s = 3.5hrs, 28 May 2023, scope East side, prime focus

G 1x1 bin - 53x180s = 2.7hrs, 03 June 2023, scope East side, prime focus

B 1x1 bin - 73x180s = 3.7 hrs, 04 June 2023, scope East side, prime focus

Ha 1x1 bin - 23x300s = 1.9hrs, 05 June 2023, scope East side, prime focus

Rig:

Imaging scope: SW Startravel 150mm F5 Refractor, Baader Diamond Track, 2.5x Celestron Luminos 2inch imaging barlow, Atik 460EX mono

Guide scope: SW Evostar 90mm F10, with guiding XY stage, ZWO 120MM camera

Guiding: 2 stage PHD: high frequency guide scope (mount tracking) and low frequency OAG image train guiding (guidescope flex)

Mount: Home made German Equatorial pillow block mount, permanently rooftop mounted. Spring loaded DEC axis gearing.

Other gadgets: ST4 based anti vibration shutter, ST4 based PEC

Processing:

PixInsight: Lights, Darks, Flats, Biases, Align Calibration, Linear fit, BXT, Channel Combination, SCNR(G). StarNet2 star removal/star layer

GradXpert: Gradient removal

Topaz DeNoise AI: Noise removal

Affinity Photo: 32 bit image processing (curves, high pass masking, selective colour)

La stagione delle galassie continua e per diverse notti ho ripreso questo classico target primaverile ma sempre irresistibile per chi ama il cielo stellato e le sue meraviglie cosmiche , lei e' M106 (conosciuta anche come NGC 4258) ed e' una galassia a spirale visibile nella costellazione dei Cani da Caccia al cui interno sembra che ospiti un buco nero supermassiccio. M106 e' in buona compagnia , infatti vi sono diverse galassie in questo ampio campo , in basso a destra la NGC4217 e accanto piu' in basso la piccola NGC4226 , in alto proprio accanto alla M106 c'e' la NGC4248 , piu' a destra molto vicine tra loro le NGC4231 e NGC4232 . M106 fu scoperta da Pierre Méchain nel luglio del 1781 e la descrisse come un oggetto nebuloso posto fra l'Orsa Maggiore e i Cani Venatici. Charles Messier osservò quest'oggetto e le indicò la posizione, ma non lo inserì nel suo famoso catalogo poiché era già stato pubblicato, solo negli anni cinquanta del XX secolo questo catalogo fu esteso. Ho effettuato le riprese il 28 e 29 Aprile e il 4 , 5 e 6 Maggio per un totale di 22 ore con filtri a banda larga Optolong Astronomy Filter L-Pro e RGB.

Light : Luminanza 240x180s bin1 , RGB 200x180s bin2

acquisizione dati : Asi Air Plus

telescopio : Skywatcher Newton 250/1000 F4

camera principale : Asi 2600 MM pro

guida : Oag-L + Asi 290 MM mini

ruota filtri : Efw 7x2

focheggiatore : Eaf 5v

montatura : Skywatcher EQ6R-pro

elaborazione : PixInsight , DSS e Photoshop

M106 galaxy dominates on this image. Also known as NGC 4258, M106 is about 80,000 light-years across and 23.5 million light-years away, the largest member of the Canes II galaxy group. For a far far away galaxy, the distance to M106 is well-known in part because it can be directly measured by tracking this galaxy's remarkable maser, or microwave laser emission. Very rare but naturally occurring, the maser emission is produced by water molecules in molecular clouds orbiting its active galactic nucleus.

The following galaxies can also be seen in the image - NGC4248 (bright at the left-bottom of the center), UGC7356 (above M106) and a pair of galaxies NGC4231 & NGC4232 (in the lower left corner of the full-size image). Beneath NGC4248 is also a cluster of distant little fuzzy galaxies.

What interesting is that this image reveals one of the two faint hydrogen jets inside M106 (2 o'clock from galaxy center).

Own remote observatory, 50 km from Kiev, Bortle 4 zone. Imaged during March - May 2021. AZ-EQ6 mount, ONTC8 newton, QHY22. Guide - OAG with Lodestar camera.

Astrodon 5nm Ha: 68 x 900s;

Astrodon L: 125 x 300s;

Astrodon R: 40 x 300s;

Astrodon G: 40 x 300s;

Astrodon B: 70 x 300s;

Total exposure - 40 hr.

Captured in SGP, processed in Pixinsight.

M106 is a spiral galaxy located in Canes Venatici constellation; is 22-25 million light-years far from Earth. It is a giant one, getting luminosity and size levels near M31’s. M106 has an active nucleus classified as Type 2 Seyfer due to a detected X-ray emission. It ’s suspected that parts of the galaxy are falling in super-massive black hole placed on the galaxy’s center.

M106 belongs to The Canes Venatici Group II, a group of galaxies about 26 million light-years from Earth. Being the biggest of the group, M106, is surrounded by by, between others, NGC4248, NGC4217, NGC4232 or NGC4231. The wide FOV of this image allows to see a big portion of Canes Group II, showing us the big amount of galaxies belonging to it. Many objects NGC and PGC can be detected (see annotated image).

Technical data:

Remote Observatory "FarLightTeam"

Team: José Esteban, Jesús M. Vargas, Bittor Zabalegui, Marc Valero

Telescope: Takahashi FSQ106 ED 530mm f/5

CCDs: QSI683 wsg8

Filters: Baader Planetarium - LRGB

Mount: 10Micron GM1000 HPS

Imaging Software: Voyager

Processing Software: PixInsight

Imaging Data:

Hosting "E-EYE Entre Encinas y Estrellas”

(Fregenal de la Sierra ) Badajoz, Spain.

L: 60 x 900"

RGB: 30 x 300” (each)

Image resolution: 2,1 arc”/pixel

M106 is a spiral galaxy located in Canes Venatici constellation; is 22-25 million light-years far from Earth. It is a giant one, getting luminosity and size levels near M31’s. M106 has an active nucleus classified as Type 2 Seyfer due to a detected X-ray emission. It ’s suspected that parts of the galaxy are falling in super-massive black hole placed on the galaxy’s center.

M106 belongs to The Canes Venatici Group II, a group of galaxies about 26 million light-years from Earth. Being the biggest of the group, M106, is surrounded by by, between others, NGC4248, NGC4217, NGC4232 or NGC4231. The wide FOV of this image allows to see a big portion of Canes Group II, showing us the big amount of galaxies belonging to it. Many objects NGC and PGC can be detected (see annotated image).

Technical data:

Remote Observatory "FarLightTeam"

Team: José Esteban, Jesús M. Vargas, Bittor Zabalegui, Marc Valero

Telescope: Takahashi FSQ106 ED 530mm f/5

CCDs: QSI683 wsg8

Filters: Baader Planetarium - LRGB

Mount: 10Micron GM1000 HPS

Imaging Software: Voyager

Processing Software: PixInsight

Imaging Data:

Hosting "E-EYE Entre Encinas y Estrellas”

(Fregenal de la Sierra ) Badajoz, Spain.

L: 60 x 900"

RGB: 30 x 300” (each)

Image resolution: 2,1 arc”/pixel

Messier 106 is an intermediate spiral galaxy in the constellation Canes Venatici. It is approximately 24 million light years distant.

Also visible in the image are several other galaxies:

NGC4226 397 Million light years away

NGC4217 60 Million light years away

NGC4231 334 Million light years away

NGC4232 349 Million light years away

NGC4248 23.5 Million light years away

Terrific camera! 58x75sec sub-exposures, no darks or bias, average seeing and transparency.

Link to full resolution

www.dropbox.com/scl/fi/xruj1bfq2p60myw2oduyj/m106_LPF_58s...

Equipment

Astrotech AT8IN, Televue Paracorr 2, Orion Atlas Pro Az-Eq G, Orion 50mm Guide Scope, QHY5III678M guide camera, Ogma AP26CC cooled camera

Software

Astro Photography Tool, PHD2, Stellarium, EQMOD, Siril, GraXpert

M106 is a spiral galaxy located in Canes Venatici constellation; is 22-25 million light-years far from Earth. It is a giant one, getting luminosity and size levels near M31’s. M106 has an active nucleus classified as Type 2 Seyfer due to a detected X-ray emission. It ’s suspected that parts of the galaxy are falling in super-massive black hole placed on the galaxy’s center.

M106 belongs to The Canes Venatici Group II, a group of galaxies about 26 million light-years from Earth. Being the biggest of the group, M106, is surrounded by by, between others, NGC4248, NGC4217, NGC4232 or NGC4231. The wide FOV of this image allows to see a big portion of Canes Group II, showing us the big amount of galaxies belonging to it. Many objects NGC and PGC can be detected (see annotated image).

Technical data:

Remote Observatory "FarLightTeam"

Team: José Esteban, Jesús M. Vargas, Bittor Zabalegui, Marc Valero

Telescope: Takahashi FSQ106 ED 530mm f/5

CCDs: QSI683 wsg8

Filters: Baader Planetarium - LRGB

Mount: 10Micron GM1000 HPS

Imaging Software: Voyager

Processing Software: PixInsight

Imaging Data:

Hosting "E-EYE Entre Encinas y Estrellas”

(Fregenal de la Sierra ) Badajoz, Spain.

L: 60 x 900"

RGB: 30 x 300” (each)

Image resolution: 2,1 arc”/pixel

Quelques galaxies voisines de la grande M106 (qui déborde un peu en haut à droite) : au centre NGC 4248, et en bas à gauche le couple NGC 4231 et NGC 4232. Image réalisée en empilant quelques clichés pris à la caméra Altaïr GP-Cam couleur au foyer d'un télescope Skywatcher 150/750. L'empilement a été réalisé avec Deep Sky Stacker et le traitement final avec GIMP.

NGC 4258 / M106

Messier 106 is an intermediate spiral galaxy in the constellation Canes Venatici and is about 24 Mly away. I think it is an improvement on last year's attempt using far fewer shots with a DSLR and no guiding.

www.flickr.com/photos/38958359@N04/49850859803/in/datepos...

I can count at least 20 other galaxies in the photo including:

-Centre – NGC 4248 ~ 24Mly and M106 Companion

-Above Centre – Pair of interacting galaxies NGC 4231 (left) and NGC4232 (right)

-Top left – NGC 4220 ~75 Mly

-Top Right – NGC 4217 ~ 60 Mly and a potential M106 Companion

-Top Right – NGC 4226 ~390 Mly – possibly the farthest I’ve captured!

This photo shows what’s really there when shot with a proper telescope!

upload.wikimedia.org/wikipedia/commons/0/0f/Spiral_Galaxy...

This image was created on a single moonless night (6 May 2021) from 40x 4min exposures giving a total integration time of 2 hours 40 mins. I tried combining with some data from a week earlier but even with an early phase moon at that point, the background light was swamping this data.

Skywatcher Evo100ED + 0.85 reducer/flattener

Skywatcher HEQ5Pro with EQMOD and PHD2 guiding

Altair 60mm guidescope with GPCAM3 385C

Altair Hypercam 294C Pro Tec – Gain @900 , 100 Black level and cooled to -10⁰C

IDAS D2 Light Pollution Suppression Filter

2 Maggio 2022 - presso Valle degli Ulivi - Manduria (TA)

M106 Galassia Spirale nei Cani Venatici

Galassia Spirale M106

(rielaborazione eseguita il 4 maggio 2014)

Si tratta di una galassia, vagamente somigliante alla più famosa Andromeda, situata a metà strada tra la costellazione dei Cani Venatici e quella dell'Orsa Maggiore.

Scoperta da Pierre Mechain nel 1781, distante da noi circa 23 milioni di anni luce, M106 è un classico esempio di Galassia di Seyfert, la rilevazione di onde radio e raggi "X" indica che molto probabilmente parte della galassia sta collassando in un buco nero supermassiccio situato nel suo centro. I bracci spirale sono ricchi di regioni HII che nelle immagini si mostrano di colore rosso o blu a seconda se siano associate o meno ad ammassi di stelle particolarmente calde e luminose. Si allontana da noi a circa 537 km\s.

Nella immagine sono ben evidenti la galassia NGC4217(in basso) e a destra la ngc4220, al centro la coppia di galassie NGC4232 e 4231 con una vaga somiglianza ad un paio di occhi, mentre la galassia alla sua sinistra è la NGC4248.

Aumentando lo zoom sull'immagine si possono intravedere decine di piccole galassiette, segno dell'immensità cosmica, come il gruppetto di 5 galassiette in alto a destra distanti mediamente 860 milioni di anni luce.

Crop al 30% della somma di 50 pose da 5 minuti riprese a 800 iso con la reflex Canon Eos600d dullspectrum al fuoco del rifrattore acromatico 152\900 ridotto a f4,8 su montatura HEQ5 s.w. autoguidata dal Synguider s.w.

Elaborazione: D.S.S. + Pixinsight LE1.0 + PScc