
NGC 404 (Mirach’s Ghost)
- NGC 404 is a dwarf lenticular galaxy (type S0) in Andromeda.
o - NGC 404 is known as “Mirach’s Ghost” because of its proximity to the second-magnitude star Mirach (Beta Andromedae).
o - It’s a famous for sitting only 7 arcminutes from the bright star Mirach (β Andromedae), which is why observers call it “Mirach’s Ghost.”
- Object Name
NGC 404
- Object Type
Galaxy
- Constellation
Andromeda
- Magnitude
+11.2
- Distance
10 million
light-years
- Annotated

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Equipment
Telescope:
Mount:
Accessory:
Sky-Watcher Esprint 80ED Triplet
Sky-Watcher AZ-EQ6 GT
ZWO ASIair Plus
Camera:
Guiding:
Filter:
ZWO ASI2600MC Pro cooling
ZWO ASI1200MM
n/a
Bortle Scale: Kelling Heath, Weybourne, North Norfolk (Bortle 4.1)
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Integration
- Date
Friday 25th November 2022
- Moonlit:
Waxing Crescent (1.6 days old)
Magnitude: -9.3
Moonlit: 3.8%
- Total
120’s x 6 subs = 12 minutes
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Constellation :- Andromeda (The Chained Maiden)

Object :-
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Object :-
Other name :-
Type :–
Magnitude :–
Distance :-
Constellation :-
Right Ascension :-
Declination :-
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NGC 404
Mirach’s Ghost
Galaxy type: S0 (dwarf lenticular galaxy)
+11.2
10 million light years / 10,000 light years across
And (Andromeda / The Chained Maiden)
01h 09m 27s
+35° 43′ 04″
Enlarge on click the map.

(Click the map above for a large view.)
| Abbreviation: And (Andromeda) |
| English Name: The Chained Maiden |
| Genitive: Alpheratz |
| Hemisphere: Northern Hemisphere |
| Location: Between the constellations of Cassiopeia and Pegasus. |
| Visible between latitudes: +90 and -40 degrees |
| Best season: Autumn |
| Seen in three seasons: Summer, Autumn & Winter |
| Best seen in: November (map) |
| Seen between: August and December |
| Right Ascension (RA): 01 hour |
| Declination (DEC): +40 degrees |
| Area (square degrees): 772 (19th) |
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NGC 404 (Mirach’s Ghost)

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- Mirach is only about 200 light-years away and shines brightly in the foreground, while NGC 404 is a completely separate galaxy 10 million light-years in the background.
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