Gallery Index

June 2014 revision

M31

Andromeda Galaxy

An early DSLR-era attempt at our nearest giant spiral

TypeGalaxy ConstellationAndromeda SeasonSummer PaletteNatural color Integration timeNot recorded Captured2014

An older Andromeda attempt from the archive, kept beside the newer mono-camera revision for comparison.

What am I looking at?
The Andromeda Galaxy is the nearest large spiral galaxy to the Milky Way and the most distant object easily visible to the naked eye.
How far away is it?
About 2.5 million light-years away.
Where is it in the sky?
In Andromeda, rising in the northeast during autumn evenings.
Why does it matter?
Our closest major galactic neighbor and a benchmark for understanding spiral structure.
When is the best time to photograph it?
Autumn nights when Andromeda climbs high before midnight.
Target Planner

When to image this target

Galaxy in Andromeda; best planned for June through August from New Jersey.

Best season June through August

Summer targets often improve later at night as the Milky Way climbs higher.

Good from NJ Late spring through early autumn

Assumes a New Jersey backyard horizon and evening imaging.

Object type Galaxy

Prioritize transparency, darker skies, and long broadband integration.

Constellation Andromeda

M31 is listed here in Andromeda.

Moon tolerance Best near new moon.

Current frame: Natural color / Broadband DSLR.

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

30m Total integration
Integration Channels
Channel Frames Time
Integration 30 x 60s 30m
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