Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  IC 1805
Melotte 15 in the Heart Nebula, 



    
        

            Bruce
Melotte 15 in the Heart Nebula
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Melotte 15 in the Heart Nebula, 



    
        

            Bruce
Melotte 15 in the Heart Nebula
Powered byPixInsight

Technical card

Imaging telescopes or lenses: Vixen VC 200L

Imaging cameras: Atik 460 EX

Mounts: Astro-Physics Mach1AP GTO with GTOCP3

Guiding telescopes or lenses: Astro-Tech AT65EDQ

Guiding cameras: ASI 120MC

Focal reducers: Vixen Focal Reducer 0.71x

Software: PHD guiding  ·  SequenceGeneratorPro  ·  photoshop  ·  Pleiades Astrophoto PixInsight 1.8 Ripley  ·  CCDStack 2+

Filters: Ha 3nm  ·  OIII 3nm  ·  SII 3nm

Accessory: Atik EFW2


Basic astrometry details

Astrometry.net job: 827481

RA center: 02h34m14s.4

DEC center: +61°2313

Pixel scale: 0.986 arcsec/pixel

Orientation: -175.936 degrees

Field radius: 0.330 degrees


Resolution: 1900x1485

Locations: Meadowlark Ridge Observatory, New Glarus, Wisconsin, United States

Description

An open cluster of massive hot blue supergiant stars can be found near the center of IC 1805 – more commonly referred to as the Heart Nebula. Shown in the upper right quadrant of this image the fierce stellar winds from these young stars have blown an enormous bubble within the parent HII nebula. These winds have also sculpted the dust clouds within which other stars are forming.

This is a narrowband image which captures ionized hydrogen, oxygen and sulphur atoms.

Color mapping: Red: 75% Ha/ 24% SII Green: OIII Blue: 85% OIII/ 15% Ha

Equipment: Vixen VC200L, Atik 460ex, Astrodon 3nm filters and AP Mach 1 mount.

Exposure: Ha:SIIIII = 240m:100:120

Location: Meadowlark Ridge Observatory

Comments

Sky plot

Sky plot

Histogram

Melotte 15 in the Heart Nebula, 



    
        

            Bruce