Sky-Watcher 80ED
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I've always avoided doing DSOs in Moonlight but a while back, I bought an Optolong L-eNhance Triband filter which can be helpful in reducing light pollution and stray Moonlight - it predominantly passes 3 narrow band widths centred on:
Hydrogen Alpha: Red, 656.4 nm
Oxygen III: Green, 500.7nm
Hydrogen Beta: Green-Blue, 486 nm
The filter is certainly more opaque than my standard IDAS P3 light pollution suppression filter. Usually my flats are exposed at 1600ms but for this filter it was 6500ms at 0 gain. Autofocus and plate solving exposures were 4s at 578 gain.
The raw image was lacking in contrast - not surprising given the Moonlight but I've used curves enhancement and local contrast enhancement in PixInsight to improve that. I haven't altered the colour palette as this was a first test for this filter.
Technical Card
480/80mm f/6 Altair Starwave triplet refractor.
Altair Planostar 1.0 x FF with 2 inch L-eNhance filter
ZWO ASI2600MC; 39 x 360 second subs, Gain 100, Offset 25, Temp = -15c.
EQ6 pro mount with Rowan belt drives. EQMOD control. Primalucelab Sesto Senso electronic focuser.
Session control; SharpCap 4.0 on laptop with WiFi link to IPad.
Automated plate solving GOTO.
Automated FWHM multistar focusing every 16 frames. +/- 500 steps at 2s and 578 gain.
20 dark frames
50 flat frames (electroluminescent panel, 6500ms exposure @ 0 gain).
Post processed in PixInsight 1.8.9.
Light Pollution and Weather:
SQM (L) not recorded - 95% Moon
Session ended by cloud, target was also very near roof level.
Polar Alignment:
Resumed from previous Park.
Error measured by PHD2= 0 arc minute.
RA drift + 2.44 arcsec/min
Dec drift - 0 arcsec/min
Guiding:
PHD2 guiding with ZWO ASI290mm/Altair Starwave 206/50mm guider. Every 4th sub dithered.
RA RMS error 1.1 arcsec
Dec RMS error 0.82 arcsec
Astrometry:
Resolution: 1.612 arcsec/px
Rotation: -87.819 deg
Observation start time: 2023-02-07 20:41:29 UTC
Observation end time: 2023-02-08 01:09:49 UTC
Focal distance: 481.13 mm
Pixel size: 3.76 um
Field of view: 2d 9' 37.7" x 1d 41' 33.2"
Image centre: RA: 6 32 17.164 Dec: +4 58 40.33
* Setup:
Telescope: Refractor Orion ED80
Focal Length: 600mm
Camera: QHY163M
Mount: Veronica CEM
Filters: LRGB Optolong and H-Alpha Baader
*Exposure:
L: 2.8 hours (subs 180s) bin1x1
Ha: 4.2 hours (subs 300s) bin1x1
R: 0.5 min. (subs 60s) bin2x2
G: 0.5 min. (subs 60s) bin2x2
B: 0.5 min. (subs 60s) bin2x2
Total: 8.5 hours
M42 The Orion Nebula in H-alpha
My lunar eclipse photo session was not so successful this morning. I much prefer the outcome of this one... Still quite a bit of Moon this evening, so only H-alpha was possible tonight.
These are 2h worth of data. 30x240s at ISO800. 12 darks. Added some 30x30s lights for the dark centre. All taken with my Explore Scientific ED 127 on an iOptron iEQ45pro mount. Camera was my 700Da.
#astrofotografia #astro #astrobin #astrofotografie #astrophotography #astrogeek #dso #deepskyphotograpy #deepskystacker #explorescientific #ioptronieq45 #ioptron #orion #orionnebula #m42 #messier #messier42 #orionnebel #sterne #stars #canon #nightphotography #nightsky #pfaffenhofen #canon #eos700da #astrogeek #nebula #nebel #space #universe
Go-Ahead London Central E 230 YX61 DSO on route 422 in Mayplace Road West, Bexleyheath. Wednesday 2nd November 2016. DSCN39652.
AD E40D-AD Enviro400 10.2m.
Go-Ahead London E230 YX61 DSO is seen here passing Central Park on West Parkside, North Greenwich whilst working route 486. Sunday 4th April 2021.
AD 40D - AD Enviro 400 10.2m
The Flame nebula NGC2024 and the Horsehead nebula IC434 in the constellation of Orion
The bright star between the two nebula is Alnitak, the first of the three stars on Orions Belt. The flame is between 900 to 1500 lighy years away, the horsehead is approx 1300 light years away, the shape of the horsehead is made of dark dust in front of the hydrogen rich nebula
Image taken under the glare of a 96% lit full moon
07/2/2023
77 minutes data
64 x 90 second exposures, plus darks, flats and bias frames.
ISO 1250
Nikon D7500 dslr (stock)
Skywatcher 80ED DS Pro refractor scope
Skywatcher 0.85x ff/cc
Skywatcher Eqm-35 pro
Processed with Deep Sky Stacker, Adobe photoshop, Adobe camera raw, Starnett++, GIMP
Poole Coach Park, working the 11.25 Route-40
Swanage to Poole Coach Park Purbeck Breezer service
on Sunday 22 November 2020
is Go Ahead South Coast / More Bus
Purbeck Breezer livery
Volvo B5TL MCV EvoSeti
1708 HF66 DSO.
V909 DSO - Aberdeen City Council - LDV 400 panel van - scrapped 2010. Photo by the late Dave Hinde at Aberdeen on 30th July 2003
In the constellation Centaurus lies one of the most magnificent globular clusters, Omega Centauri. NGC5139. Gracing southern skies, an easy target to spot with binoculars, and although easy to capture as a mag 3,7 object - processing wasn't an easy feat. The volume of stars is surreal.
I unfortunately didn't shoot original flats, and I can see that artificial flats is not doing this photo justice…
30 Minutes (30x 1min)
10 Darks, artificial flats.
My setup for this image:
Celestron 11' SCT, CGEM DX
Canon 60Da
Starizona SCT corrector / flattener&reducer
Guided via Celestron 80mm guide scope & Orion StarShoot Autoguider, PHD
Images acquired & stacked: Nebulosity 3
Final Processing: PhotoShop
Find me on Twitter: @AstroTanja
One of the 3 Zenobe owned BYD's currenlty in sercice with National Express,seem here in Moor Street Queesway.
KX65 DSO - Northamptonshire Police - Vauxhall Astra Emergency Services CDTi Ecoflex estate car; new 1/12/2015. Hollowell Steam Rally & Heavy Horse Show on 3rd July 2016
NX59 DSO
2009 MAN TGX 26.480 XXL
Unknown showman
Banbury, 15 October 2021
New to John Dickinson, Winston, Co. Durham
Dearborn Symphony Orchestra - Main Stage Headliner, Dearborn Homecoming Festival 2015
The Dearborn Symphony Orchestra NAILED IT as the headliner before the Fireworks Finale at the Homecoming this summer!
The crowd was as diverse as you could imagine, with multi-generations and ethic groups galore. But the DSO proved that no matter who you are, classical music has something to offer you!
I wandered around to get different camera angles, so got to observe various people's reactions.
Many people seemed both curious and enthusiastic, but not knowing quite what to make of it all with so many instruments and a widely varying set list to mix up their emotions! That's some powerful story telling, all done without lyrics getting in the way of the PURE MUSIC ENERGY POURING FROM THE STAGE.
Here's a comment I overheard after they finished playing the theme from "The Lone Ranger" - "Wow, I didn't know I liked classical music..." and then I asked him if he's seen the Dearborn Symphony Orchestra at their auditorium at Michigan & Greenfield. He said no, and I told him he's missing out on an even more amazing sonic experience there!