| Classification: |
Abell 85, Supernova remnant (SNR) CTB 1 / LBN 576 |
| Constellation: |
Cassiopeia (Cas) |
| Object Location: |
Ra 23h 58m 53s Dec +62° 30’28° (current) |
| Size & Distance: |
Apx. 35 x 35 Apx 9800 light years. |
|
| Date & Location: |
08-19-2017 Palomar Mountain, CA. |
| Exposure: |
HaRGB 300-30-30-30, Ha 15x20, RGB 6x5 ea.(bin 1x1) |
| Optics: |
Telescope Engineering Company APO180FL @ f/5.23 using an Astro-Physics TCC160 F/L 941mm. |
| Mount: |
Astro-Physics 1200 GTOCP4 / ATS 10x36 Pier. |
| Camera: |
FLI-ML6303E @-25c / FLI CFW2-7 / FLI-Atlas focuser / Guided by SBIG ST-I / w OAG. |
| Filters: |
Astrodon 3nm Ha, G2 RGB |
| Software: |
MaxImDL 6.11, Photoshop CS5, Topaz Labs. |
|
| Notes: |
Sky conditions: Above average seeing, no wind, Temp 60°
Cropped Field of view is 88.6 x 64.5 arcmin.
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Abell 85 supernova remnant is about 10,000 years old and is about 9800 light-years distant, and about 100 light-years in diameter.
Originally catalogued as Abell 85, a planetary nebula. It was soon determined to be a supernova remnant. It’s also recognized as a radio source and has a (CTB 1) designation.
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