
IC 1396A (Elephant’s Truck Nebula)
- The red glow is H‑alpha emission from ionised hydrogen.
o - Dark globule inside emission nebula ~ The Elephant’s Trunk (IC 1396A) itself does not have a defined single magnitude because it is a dark globule embedded in an emission nebula.
o - The larger region IC 1396 nebula has an apparent magnitude of +5.6.
- Object Name
IC 1396A
- Object Type
Dark globule inside emission nebula
- Constellation
Cepeus
- Magnitude
n/a
- Distance
2,450 light-years
- Annotate

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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
2″ Optolong eNchance
Bortle Scale: Kelling Heath, Weybourne, North Norfolk (Bortle 4.1)
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Integration
- Date:
Saturday 14th October 2023
- Moonlit:
Waxing Crescent 0.8 days old
Magnitude: -3.0
Moonlit: 5%
- Total:
180’s x 22 subs = 1 hour 6 minutes
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Constellation :- Cepheus (The Cepheus King)

Object :-
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Object :-
Other name :-
Type :–
Magnitude :–
Distance :-
Constellation :-
Right Ascension :-
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IC 1396A
Elephant’s Truck Nebula
Dark globule inside emission nebula
n/a
2,450 light years / 25 light years long
Cap (Cephus / The Cepheus King)
21h 35m 37s
+57° 24′ 03″
Enlarge on click the map.

(Click the map above for a large view.)
| Abbreviation: Cep |
| English Name: The Cepheus King |
| Genitive: Alderamin, sometimes spelt Al Deramin. |
| Hemisphere: Northern Hemisphere |
| Location: Between the constellations of Cassiopeia and Draco. |
| Visible between latitudes: +90 and -10 degrees |
| Best season: Autumn |
| Seen in three seasons: Summer, Autumn & Winter |
| Best seen in: October (This constellation of Cepheus stays in the sky all the year.) |
| Seen between: August and December |
| Right Ascension (RA): 22 hour |
| Declination (DEC): +70 degrees |
| Area (square degrees): 588 (27th) |
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Facts about IC 1396A
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- “The Elephant’s Truck”, because the dark pillar of dust and gas in IC 1396A looks strikingly like the trunk of an elephant when seen in silhouette against the glowing red background of the IC 1396 emission nebula.
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