Lots of gradients and stray light from somewhere coming in. Hard to process and as a result have lost the fainter outer arms.
| Object ID | M81 Bode’s galaxy Mag. 6.94, Size 26.9′ x 14.1′ Ursa Major |
| Details | 2018-11-1 21:59 – 22:47 UT |
| Telescope | 250mm f4.8 Newtonian, MPCC IDAS P2 LPR filter Guided |
| Camera | Atik 460EX, Baader LRGB filters |
| Exposure(s) | L 20x120s 1×1, RGB 10x60s 2×2 each darks, flats were no good |
| Capture | APT |
| Processing | Nebulosity 4, Photoshop |
Spiral Galaxy, Ursa Major
Mag 6.9, size 21’x10′
2017-01-02
200mm f8 RC at f6 (Revelation x0.75 reducer)
Piggyback guiding with 70mm f/7 refractor
L 10×240s 2×2, RGB 10×120s 4×4 Darks Bias Flats
Atik 460EX (-25C), LRGB filters, IDAS P2 LPR filter
Captured in APT, Processed in Nebulosity3, PS CC, LightRoom
Terrible trouble with LP, noise and flats. Hard to process out the flaws.
Messier 81 (also known as NGC 3031 or Bode’s Galaxy) is a spiral galaxy about 12 million light-years away in the constellation Ursa Major. Due to its proximity to Earth, large size and active galactic nucleus (which harbors a 70 million M☉ supermassive black hole), Messier 81 has been studied extensively by professional astronomers. The galaxy’s large size and relatively high brightness also make it a popular target for amateur astronomers.
Messier 81 was first discovered by Johann Elert Bode on December 31, 1774. Consequently, the galaxy is sometimes referred to as “Bode’s Galaxy”. In 1779, Pierre Méchain and Charles Messier reidentified Bode’s object, which was subsequently listed in the Messier Catalogue.
Wikipedia
Spiral Galaxy, Canes Venatici
Mag 9.3 Size 12.6′ x 7.2′
2015-04-20
200mm f8 RC, piggyback guiding C80ED
L 12×300 2×2, RGB 8,8,5×240 3×3
Atik 460EX (-10C), LRGB filters, IDAS P2 LPR filter
Captured in APT, Processed in Nebulosity3, PS CC
Not the best but a new Messier object imaged.
Galaxy, Coma Berenices
Mag 9.36 Size 9.3′ x 5.4′
2013-04-29
200mm f8 RC, piggyback guiding C80ED
6×120 10×180 5×240 ISO 1600, darks, flats
Canon EOS 350D modded, Astronomik CLS
Captured in APT, Processed in Nebulosity, PS CS5
Spiral Galaxy, Leo
Mag. 9.3 Size 8’x1.5′
2011-03-22
200mm f5 Newtonian MPCC Guided
Canon EOS 350D, Astronomik CLS
10x180s 10x240s darks flats ISO 800
Processed in Nebulosity and PS CS5
Spiral Galaxy, Leo
Mag 8.9 Size 8’x2.5′
2010-04-16
200mm f5 Newtonian
DS filter, guided, Canon 350D
5x300s subs processed in Nebulosity and PS CS3
Lost some subs due to a meridian flip.
Open Cluster, Cancer
Mag. 6.1 Size 30′
2012-01-15
200mm f5 Newtonian MPCC Guided
Canon EOS 350D modded, Astronomik CLS
10x60s, darks, flats, ISO 800
Captured in APT
Processed in Nebulosity and PS CS5
Globular Cluster, Sagitta
Mag 8.2 Size 7.2′
2010-08-15
200mm f5 Newtonian, Canon 350D
Guided, SW LPR filter, MPCC
3x120s subs before clouds
Processed in Nebulosity and PhotoShop CS5
First use of new Skywatcher LPR filter.
Doesn’t really look like a globular – in fact it wasn’t classified as one for a while.
Planetary Nebula, Perseus “Little Dumbell”
Mag 10.1 Size 2.7 ‘x 1.8’
2010-09-07
200mm f5 Newtonian SW LPR MPCC
Canon EOS 350D Guided
10x120s 4x60s subs darks ISO 800
Processed in Nebulosity, PhotoShop CS5
Spiral Galaxy, Ursa Major
Mag 6.9, size 21’x10′
2011-02-27
200mm f5 Newtonian MPCC Guided
Canon EOS 350D, Astronomik CLS
10x180s 5x240s darks ISO 800
Processed in Nebulosity and PS CS5
First use of new Astronomik CLS filter.
