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Messier 57 is is just coming into a position for a decent look around 11 30 pm. IT is a colourful object and I thought it would give me a good target with which to practice my colour developing in PS/Lightroom. I have read so much about how to produce a LRGB image from the four stacked/calibrated luminance, red, blue and green images, a lot seems contradicatory and some, when followed, gave me colour yes, but not as we know it. I am sure a fair chunk must be put down to me. Anyway, I now have a work flow which gives me colour, sometimes resembling what other people have obtained. Progess of sorts.
This images is based on 114s subs at gain 139, offset 21.
L 39, R 20, G 20, B 19
Calibrated and stacked in DSS (flats, dark flats and darks)
Messier 57 Ring Nebula in Lyra
NASA: M57, or the Ring Nebula, is a planetary nebula, the glowing remains of a sun-like star. The tiny white dot in the centre of the nebula is the star’s hot core, called a white dwarf. M57 is about 2,000 light-years away in the constellation Lyra, and is best observed during August. Discovered by the French astronomer Antoine Darquier de Pellepoix in 1779, the Ring Nebula has an apparent magnitude of 8.8 and can be spotted with moderately sized telescopes.
Equipment: Celestron 9.25 XLT at F10, Skywatcher EQ6 Pro GEM, ZWO 1600MM Pro, ZWO EFW with ZWO LRGB filters, QHY5IIC guide camera on Skywatcher 9 x 50 finderscope, Celestron Focus Motor
Software: Ascom 6, Eqmod, Cartes du Ciel, AstroPhotography Tool, PHD2
Here are my SN targets for next week (weather permitting)...
1.NGC 3643, SN2020hvf, Mag 12.4 (observed on 27th April & 8th May)
2.M61, SN2020jfo, Mag 14.5 (observed on 8th May)
3.NGC 6118, SN2020hvp, Mag 14.6
4.UGC 10561, SN2020hvq, Mag 15.9
5.PGC 056685, SN2020fhs, Mag 16.1
(Remember to rotate the finder charts 180 degrees to match the view to a dob)
With clear nights forecast next week and the moon getting later to rise 😀, I have done some SN research this morning to id some targets for next week...
Here are some scans of my research notes and star charts for use next week...
I will be targeting the following new SN:
AT2020ftl, NGC4277, Mag 14.9 SN2020dko, NGC5258, Mag 16.6 AT2020enm, IC1222, Mag 16.7 SN2020fqv, NGC4568 (Siamese Twins), Mag 15.3 SN2020fcw, NGC5635, Mag 16.1 SN2020ees, NGC5157, Mag 16.5
Need a bit of help to narrow down what I see, I've wanted to buy a telescope a year ago but a couple of things stopped that decision.
Saw a strong bright glowing star in the cloudless sky so I picked up my old binoculars laying around. I appended three images, one what my phone saw, secondly the raw image, thirdly a star map pointing towards the object (center-ish).
I know it feels pretty laughable for s.o with an 8" GOTO + 5 yrs of experience, but maybe we can attempt to locate the object anyway ;)
Report of my Virgo supernova hunting from 0200-0400 on morning of Jan 19th 2020.
Equipment: 20" dobsonian f3.6. Televue Delite 18.2mm & PVS14 night vision device.
Outcome: 4 supernovae observed successfully.
NGC4441 & SN2019yvq - Supernova obvious and immediately seen. Held in direct vision close in to the core.
M100 & SN2020oi - Bright supernova outshines the core close in and is easily split from the core too. Decent amount of galaxy shape and faint arm structure fills the fov.
NGC4636 & SN2020ue - This is a little trickier as you need to determine which "star" is the supernova. But the supernova "star" is the brightest of the patch of five it sits within. Use the two brightest stars just outside the core to orientate yourself (images were upside down for me). The faint star closest to the core is the hardest to spot and was intermittent for me. The next 2 stars from the core are the most obvious (and the SN is one of these 2). The final 2 stars in the group of five take some staring to get to see but once you locate them you can continue to see them.
NGC4666 & SN2019yvr - The toughest of the bunch! The galaxy is huge and clear in the fov. There is a group of 3 tight stars above (for orientation purposes) and the SN is located underneath away from the flat disk. I had to wait a few seconds before I got a brief glimpse of the SN as the galaxy drifted across the view. I glimpses it 4 more times during my time letting it drift across the fov. A toughie for sure.
Hope this helps others find them,