| Classification: |
Open Cluster / Emission Nebula |
| Constellation: |
Cassiopeia (Cas) |
| Object Location: |
Ra 02h 33m 48s Dec +61° 31’05° (current) |
| Size & Distance: |
21 x 21 Apx 7500 light-years. |
|
| Date & Location: |
09-16-2012 Palomar Mountain, CA |
| Exposure: |
Hubble Palette HSHO, Ha=L, Sll=R, Ha=G, Olll=B, 8 ea. @ 15min. (bin 1x1) |
| Optics: |
Telescope Engineering Company APO160FL @ f/7.2 F/L 1152mm. |
| Mount: |
Astro-Physics 900 GTO / ATS 10x36 pier. |
| Camera: |
SBIG-10XME @-10c / FLI-PDF / Guided by TV60 / SBIG-ST402 |
| Filters: |
Astrodon 3nm Ha, Sll, Olll. |
| Software: |
MaxImDL 4.56, Photoshop CS5, Topaz Labs. |
|
| Notes: |
Sky conditions: Above average seeing, Light wind, Temp 66°
Image Field of view is 29 x 44 arcmin.
This image was an Astronomy Magazine Picture Of The Day. Feb,9 2017
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Center of the Heart nebula IC1805 / Sh2-190, also known as Melotte 15 (Mel 15) is an open cluster of stars and contains a few bright stars nearly 50 times the mass of our Sun, and many more dim stars that are only a fraction of our Sun's mass.
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