FSQ106ED + 645Reducer

Modified Z6

Slow progress on mostly cloudy nights. The dark nights are coming to an end soon, hopefully I get the frames needed to finish this mosaic before the four month summer break without a single minute of astronomical darkness from April 20th to August 23rd.

A segment of Markarian's Chain (without annotation) which is a stretch of galaxies that forms part of the Virgo Cluster. It is called a chain because, when viewed from Earth, the galaxies lie along a smoothly curved line. It was named after the Armenian astrophysicist, B. E. Markarian, who discovered their common motion in the early 1960s. Member galaxies include M84 (NGC 4374), M86 (NGC 4406), NGC 4477, NGC 4473, NGC 4461, NGC 4458, NGC 4438 and NGC 4435.

I'm planning to get some more shots of the chain and stitch them together in order to show it off in all it's glory, so this is just a first panel and a test of exposure and processing settings.

This image is made from 29 x 30 second exposures at 3200 ISO and 18 x 30 second exposures at 6400 ISO plus 19 dark frames, 16 flat frames and 48 bias/offset frames (applied to flat frames only). Total exposure time 23 and a half minutes. Images taken on April 30th 2015. Processing was done in Nebulosity and Photoshop.

Picture saved with settings applied.

Picture saved with settings applied.

Parte della catena di Markarian contente M84, M86 IC3303, NGC4387, NGC4388, NGC4402, NGC4413

這條串連星系的長鏈

能否將我的思念

傳遞給妳?

馬卡萊恩鏈

Markarian's Chain

M87

Virgo A

NGC 4486

馬卡萊恩鏈其實是室女座星系團的其中一小部分

在這天區中

有著數以千計的星系

十分壯觀

不過因為不斷有雲飄來

效果很差

但是因為是第一次拍攝

留給紀錄

228連假遵循建天的傳統

跟著學弟上山

不過因為東埔山莊還在整修

只好換到大雪山來

不過天氣就不是太好

4年前的寒訓也來過

天氣同樣是糟到底

這次趁著開雲縫的時候

勉強拍了幾張

第一次來大雪山天池停車場

不太適應

尤其是四周的遮蔽都滿高的

銀河基本上是GG

風也滿強的

氣溫也低(2度)

好在旁邊有廁所(有加熱)+飲水機(有熱水)還不錯

Date：2020/2/29

Weather：Cloudy

Location：

Dasyueshan, Heping ,Taichung, Taiwan

Camera：Canon 6D

Lens/Telescope：

William Optics ZenitherStar 81+

Flat 6A II

Mount：iOptron CEM40

Guiding：

William Optics Uniguide+ZWO ASI120MM mini+PHD2

Parameter： ISO800

Exposure time：2min*40

Dark,Bias

Software：DSS+PS

NGC:4374 M84 GALXY RA:12h25 DEC:12°53' m:10.1 Markarian's Chain VIR

NGC:4438 GALXY RA:12h28 DEC:13°00' m:10 Markarian's Chain - The Eyes VIR

NGC:4435 GALXY RA:12h28 DEC:13°04' m:10.8 Markarian's Chain - The Eyes VIR

NGC:4388 GALXY RA:12h26 DEC:12°40' m:12.2 VIR

Orion Skyview 203mm f/4.9 + MPCC + EOS 60D + Atlas EQ-G

7 × 30s @ISO 1.250

Markarian's chain of galaxies. There are many galaxies in the image. This is a 25minute exposure. See the sky map for more info.

FSQ-85ED with Reducer(fl:327mm、F3.8) Astro50D（ISO800,300s×32） Takahashi EM200temma2M

An integration of 34 x 5 mins, ISO 800, Canon 550D, SW80ED pro with 0.8 FF/FR plus light pollution filter. Imaged on Awaji Island Japan.

Markarian's Chain is a stretch of galaxies that forms part of the Virgo Cluster. It was ultimately named after the Armenian astrophysicist, Benjamin Markarian, who discovered their common motion in the early 1960s.[3] Member galaxies include M84 (NGC 4374), M86 (NGC 4406), NGC 4477, NGC 4473, NGC 4461, NGC 4458, NGC 4438 and NGC 4435.

A group of galaxies in the virgo cluster. This frame centred on M86. Canon 40d, ISO 800 through a William Optics FLT98 at f/5. Stack of 5 x 5min frames; dark subtracked, no flats.

Markarian's Chain, a group of galaxies in the constellations Virgo and Coma Berenices. 20 hours of LRGB imaging with 120mm refractor and 0.65 reducer.

Markarian's Chain

So many galaxies in one area of sky This is Markarians Chain in Virgo, currently overhead, each fuzzy blob a galaxy, contain billions of stars and probably trillions and trillions of planets, M84, M86, M87 are the bigger ones. So many satellites are visible here too at this time of year, many frames had bright passes but the software appears to have done a good job

1hr 51 minutes total integration time of 90 second exposures. With the Skywatcher80ed DS Pro. Telescope, 0.85x ff/cc, Nikon d7500 on EQM-35 pro mount

Images taken over 2 nights Tuesday 18th and Wednesday 19th April

Processed in dss / photoshop

Markarian's Chain, Virgo Galaxy Cluster. Stack of 12 5min exposures at ISO 1600, Rebel XSi, Tak FSQ106N on EM200, no guiding. Shooting Star Inn, Kendrick Park, AZ, April 2010. Unfortunately a bit out of focus, but still lots of galaxies!

Skywatcher 72ED con reductor 0.85

Cámara ZWO ASI 533

Filtro Optolong CLS

24 x Lights 300 segs el 13-02-2021

20 x Flats

30 x Darks

50 x Bias

Software:

N.I.N.A, PHD2, PixInsight

Cadeia de Markarian. São milhares de galáxias que fazem parte do aglomerado de galáxias de Virgem. Recomendo de verdade que vejam no link da bio a foto em tamanho completo, assim poderão distiguir as minúsculas galáxias em espiral que aparecem na foto, além de várias outras elípticas. Quer identificar uma galáxia elíptica? Se a estrela não tem uma borda bem definida, é uma galáxia, ou seja, bilhões de estrelas bilhões de anos-luz distantes de nós! Foto feita no dia 28/02/2022 em um local bortle 3, o @bregildo_camping .

Markarian's Chain. It's thousand of galaxies that make the Virgo Cluster. I strongly recommend you to see the full size picture in my flickr (link in my bio), so you can distinguish the tiniest spiral galaxies presents in the picture, and other elliptical galaxies. Do you want to know how to identify a elliptical galaxy? Look at the star. If it doesn't have a sharp edge, it is not a star, it's a elliptical galaxy. Billions of stars billions of light years away from us! Capture made in 28/02/2022 in a bortle 3 site, the @bregildo_camping .

Canon SL2 modified, William Optics zs sd (66/388mm) with 0.8 focal reducer (leading to f4.9 and 310mm focal lenght), ISO 1600. Guiding with Asiair and ASI290mc in an adapted finderscope 50mm, Eq5 Sky-watcher mount and AstroEq tracking mod. 29 Ligth Frames of 180s, 30 darks and 55 bias. 1h27minutes total exposure. Processing on Pixinsight. Bortle 3.

#astrophotography #astrofotografia #nightsky #astronomy #astromomia #CanonSL2 #dslrmod #Eq5 #skywatcherEq5 #AstroEq #MarkariansChain #fieldflattener #DeepSkyStacker #deepsky #adobephotoshop #pixinsight #asi290mc #ZwoAsi #zwoasi290mc #longexposure #yn50mm #yongnuo50mm #asiair #guiding #astfotbr

NGC 4438 (the larger galaxy) and NGC 4435 are usually referred to as The Eyes or The Eyes of Virgo. They're in the constellation of Virgo and are part of the Virgo Cluster and the Markarian's Chain (a group of galaxies all in a row)

Markarian's Chain in the Constellation of Virgo

Photo by Dave Frost

Markarians Chain

NGC:4374 M84 GALXY RA:12h25 DEC:12°53' m:10.1 Markarian's Chain VIR

NGC:4406 M86 GALXY RA:12h26 DEC:12°57' m:9.8 Markarian's Chain VIR

NGC:4438 GALXY RA:12h28 DEC:13°00' m:10 Markarian's Chain - The Eyes VIR

NGC:4435 GALXY RA:12h28 DEC:13°04' m:10.8 Markarian's Chain - The Eyes VIR

NGC 4387, NGC 4402, NGC4488, NCG 4425

Orion 254mm f/4.7 + MPCC MK III + EOS 80D + Atlas EQ-G

4 × 30s @ISO 1.600

Objekte: Diverse Galaxien im Virgo Haufen

Sternbild: Jungfrau

Teleskop: TLAPO 80/480mm mit 0,8 Reducer

Filter: kein

Aufnahmen: 14*300 Sekunden

Belichtungszeit: 80 Minuten

Kamera: Canon EOS 1100D, ISO 800

NGC:4374 M84 GALXY RA:12h25 DEC:12°53' m:10.1 Markarian's Chain VIR

NGC:4406 M86 GALXY RA:12h26 DEC:12°57' m:9.8 Markarian's Chain VIR

NGC:4435 GALXY RA:12h28 DEC:13°04' m:10.8 Markarian's Chain - The Eyes VIR

NGC:4438 GALXY RA:12h28 DEC:13°00' m:10 Markarian's Chain - The Eyes VIR

NGC:4458 GALXY RA:12h29 DEC:13°14' m:11.8 Markarian's Chain VIR

NGC:4461 GALXY RA:12h29 DEC:13°11' m:11.1 Markarian's Chain VIR

NGC:4473 GALXY RA:12h30 DEC:13°25' m:10.2 Markarian's Chain VIR

NGC:4477 GALXY RA:12h30 DEC:13°38' m:10.4 Markarian's Chain VIR

Orion 203mm f/4.9 + MPCC MK III + EOS 6D + Atlas EQ-G

LVI2 Autoguider + Baader Vario Finder 10 × 60

21 × 30s @ISO 3.200

Image of Markarians Chain, a series of galaxies in the constellation of Virgo. Taken with a Samyang 135mm lens at F2.8.

It is quite remarkable to think that most of these galaxies are over 50 million light years from us and quite likely the size of our Milky Way.

RA: 12h 26m 30s, Dec: +12° 55' 00"

Messier 86 (also known as M86 or NGC 4406) is an elliptical or lenticular galaxy in the constellation Virgo. It displays the highest blue shift of all Messier objects, as it is, net of its other vectors of travel, approaching the Milky Way at 244 km/s. M86 forms part of the Markarian's Chain (www.flickr.com/photos/absolutefolly/53362018482/), a curved arc of galaxies (as seen from Earth) within the Virgo Cluster.

Source: Wikipedia

This image is the result of bad targeting on the Markarian's Eyes, two interacting galaxies (NGC 4438 and NGC 4435) within the Chain, located ~ 50 million light-years from Earth.

OTA: Planewave 17" CDK Astrograph (Alnitak Remote Observatory, Sierra del Segura, Spain)

Camera: Moravian Instruments C3-61000 Pro

Image Scale (2x2): 0.53 arcsec/pixel

FOV: 0.7° x 0.47° (@ bin x2)

Total integration time: 48 min

Subs:

4 x 180 sec LUMINANCE (bin x2)

4 x 180 sec RED (bin x2)

4 x 180 sec GREEN (bin x2)

4 x 180 sec BLUE (bin x2)

Data acquisition: 17/12/2023

Calibration: ARM

Alignment & stacking: PixInsight

Post-processing: Photoshop & PSP2019

via Facebook ift.tt/2tcw3Ue

9 hours and 28 minutes total integration - 568 x 60s over 2 nights, darks, flats, bias. Processed in Photoshop and starnet++ V2.

4/27-28/2025 about 10:00PM-1:00AM

Transparency: 10/10, Seeing 4/5

Temperature: about 30-45 degrees

Exposure total: 6 minutes

Equipment: Seestar S50

Due to a gradient caused by a street light, I cropped the image.

4/27-28/2025 about 10:00PM-1:00AM

Transparency: 10/10, Seeing 4/5

Temperature: about 30-45 degrees

Exposure total: 6 minutes

Equipment: Seestar S50

Due to a gradient caused by a street light, I cropped the image.

Markarian's Chain