Astronomical data · SIMBAD
- Object type
- GiG
- Redshift
- z = 0.021838441312623014
- Coordinates
- RA 39.3188° · Dec 7.3358°
View on SIMBAD →
via SIMBAD · CDS Strasbourg
Key facts
- Constellation
- Cetus
- Right ascension
- 02 37 16.50891
- Declination
- +07 ° 20 ′ 08.7169 ″
- Heliocentric radial velocity
- 6476 km/s
- Distance
- 303.7 ± 21.4 Mly (93.11 ± 6.56 Mpc )
- Absolute magnitude v
- -23.46 +/- 0.51
- Type
- S?
via Wikipedia infobox
Wikidata facts
- Instance of
- spiral galaxy
- Constellation
- Cetus
- Radius
- 45000
- Image
- NGC 0998 SDSS.jpg
Show 11 more facts
- discoverer or inventor
- Albert Marth
- time of discovery or invention
- 1863-11-10
- catalog code
- Gaia DR2 19708509705354624
- right ascension
- 39.31878711110360
- redshift
- 0.019787
- apparent magnitude
- 11.069
- galaxy morphological type
- S
- Commons category
- NGC 998
- declination
- 7.33575469264940
- radial velocity
- 6547
- epoch
- J2000.0
Sources (2)
via Wikidata · CC0
~1 min read
Encyclopedic overview
NGC 998 is a spiral galaxy in the constellation Cetus. It is estimated to be 294 million light years from the Milky Way and has a diameter of approximately 90,000 ly. Together with NGC 997, it forms a gravitationally bound pair of galaxies. NGC 998 was discovered by astronomer Albert Marth on 10 November 1863 using a 48-inch telescope.
See also
Excerpted from Wikipedia’s “Q1040815” article, available under the CC BY-SA 4.0 licence.
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