Melotte 15 is an emission nebula located in the central region of the IC 1805 nebula (heart nebula).
The object is about 7,500 light-years away in the constellation Cassiopeia.
The emission nebula showing radiant ionized hydrogen. Melotte 15 is a favorite of many astrophotographers.
Melotte 15 – newborn star cluster in the Heart nebula (HST)
| Telescope | ASA 10″ F/3.6 10N ASTROGRAPH OTA |
| Focal length | 900 mm |
| Mount | G53f |
| Imaging camera | Atik 460EX mono |
| Guiding cameras | Lodestar X2 -Autoguider |
| Guiding optics | ASA 10″- OAG |
| Focal reducers | ASA 3″ Wynne Corrector 0,85x |
| Constellations | Cassiopeia |
| Distance | 7500 light years |
| RA center | 02h 34′ 44″ |
| DEC center | +61°24′ 10″ |
| Location taken | Slovakia |
| Date taken | 11/2019 |
| Pixel scale | 1.04 arcsec/pixel |
| Filters | Astronomik Ha 6nm , Astrodon OIII 5nm, Astrodon SII 5nm, |
| Exposure | 108 x 600 sec.BIN1 Ha filter 52 x 600sec.BIN1, 20 x 1200sec.BIN2 OIII filter 8 x 1200sec.BIN2 SII filter |
| Total exposure | 36 hours |
| Processing software | PixInsight, CCD Inspector |
Processing object Melotte 15 was captured using Narrowband Filters.
(Hydrogen-alpha – H-α 6nm, Sulfur – SII 6nm, Oxygen – OIII 5nm)
Here you see a few hours of individual images, which are processed by joining in Hubble (Narrowband in Hubble Palette).
It is interesting to see these individual images without stars.
You can see the resulting product above.
