HD 225216 Nebula - 26 Jan 2025

After almost 2 hours imaging the Monkeyhead Nebula I decided to try the Plan app within the Seestar S50. I had set up 2 objects: HD 225216 (labeled Unknown in Seestar) that is a large nebula in the NW sky, and the Markarian's Cluster. The first object would be imaged between about 9 pm and Midnight while the 2nd object would be imaged from Midnight to 5 am. It was 9:30 pm already so I started the plan and went to bed.

According to the Seestar App this nebula has a star HD 225216 near HD 224826 and near V398.

The bright star in the center of this nebula is HR 9104 near the star cluster SAO 21019. The nebula itself is near NGC 7822

Observation and Astrometry data
Constellation: Cepheus
Right ascension: 00h04m42.00s
Declination: +67°10'00.0"
Apparent magnitude: 5.67
Distance: 97.087 parsecs
Proper motion RA: 95.1
Proper motion Dec: 24.7
B-T magnitude: 7.035
V-T magnitude: 5.794

Catalogs and designations:
Proper Names   (Edit)
HD 1989                 HD 225216
TYCHO-2 2000 TYC 4026-678-1
USNO-A2.0         USNO-A2 1500-00094037
BSC 1991         HR 9104
HIP                         HIP 379

A search of HD 1989 generated the following: 

HD 1989 is a subgiant star located in the constellation of Sculptor, The Sculptor. It is not part of the Sculptor constellation outline but is within the borders of the constellation.Based on the spectral type (K1IV/V), HD 1989 colour is orange to red, these are stars that are cooler than our own star.

HD 1989 temperature is in the range of between 3,700 and 5,200 Kelvin. HD 1989 effective temperature is 4,968 Kelvin which is cooler than the Sun's effective temperature which is 5,777 Kelvin.

Location

HD 1989 location in sky is determined by the right ascension (R.A.) and declination (Dec.). These are equivalent to the Longitude and Latitude on Earth. The Right Ascension (Longitude) is expressed in time (hh:mm:ss) and is how far the star is along Earth's celestial equator. If the R.A. is positive, then it's eastwards and vice versa.

The Declination (Latitude) is how far north or south the object is compared to the celestial equator and is expressed in degrees. If the value is positive, it is north of the celestial equator. For HD 1989, the location is 00 23 55.1429505624 and -31 16 23.527889484 .

Based on the location of Sculptor, HD 1989 can be located in the southern hemisphere of the celestial sky. The celestial hemisphere is equivalent to the hemispheres on Earth. HD 1989 is south of the Ecliptic. The Ecliptic is the path that the Earth takes as it orbits the Sun. As the Earth is titled, we therefore have Celestial and Ecliptic hemispheres and they can be different for a star.