Gallery Index

IC 1805

Heart Nebula

Ionized gas shaped by a young cluster

TypeNebula ConstellationCassiopeia SeasonAutumn PaletteNarrowband Integration time2h 45m Captured2020

The site gets its pulse here: sculpted red emission, dark dust, and the compact Melotte 15 star cluster in the core.

What am I looking at?
The Heart Nebula is a large star-forming region whose glowing loops resemble a heart.
How far away is it?
About 7,500 light-years away.
Where is it in the sky?
In Cassiopeia, near the W-shaped constellation.
Why does it matter?
A rich narrowband object with bright H-alpha structure and embedded young star clusters.
When is the best time to photograph it?
Autumn nights when Cassiopeia is nearly overhead.
Target Planner

When to image this target

Nebula in Cassiopeia; best planned for September through November from New Jersey.

Best season September through November

Autumn is a strong window for Cepheus, Cassiopeia, Andromeda, and late Cygnus fields.

Good from NJ Late summer through autumn evenings

Assumes a New Jersey backyard horizon and evening imaging.

Object type Nebula

Emission nebulae are good candidates for narrowband filters; reflection nebulae prefer darker skies.

Constellation Cassiopeia

IC 1805 is listed here in Cassiopeia.

Moon tolerance Narrowband can tolerate some moonlight.

Current frame: Narrowband / Ha, OIII, SII.

Live altitude, moon, and filter guidance
Planning from Sewell, NJ

Calculating target altitude and moon context.

Check your location Enter ZIP in planner

Use the full planner to enter a ZIP code, choose a date, and compare the target from your sky.

Planning values are approximate and update in your browser.

Planning site Sewell, NJ 39.7700, -75.1400
Current altitude ...

Based on the current time.

Target transit chart Compact altitude curve for this target over a full day. Target ...

Green marks usable dark-sky altitude.

Next transit ...

Next upper transit.

Rise / set ...

Approximate horizon crossing.

Moon now ...

Moon phase and altitude.

My gear vs this target

How I captured this

2h 45m Total integration
Optolong L-eNhance 2 Channels
Channel Frames Time
Optolong L-eNhance 2 33 x 300s 2h 45m
Equipment used
From my current rig
Mount
iOptron CEM60
Telescope
Explore Scientific FCD100 127mm Carbon Fiber Triplet APO
Camera
ZWO ASI2600MM Pro
Filters
Chroma 36mm Ha, OIII, SII, and LRGB (ZWO EFW 7×36mm)
Focuser / rotator
MoonLite NiteCrawler
Reducer
Starizona Apex ED 0.65×
Guiding
ZWO off-axis guider + ASI290MM Mini
Control / power
PrimaLuceLab Eagle 4S, Powerwerx PSU, Bioenno field battery, and MEGAbox