Amatha Galaxy (NGC 925)

NGC 925
NGC 925: Galaxy in Triangulum; 500 mm Cassegrain f/7.2; SBIG STL11K; 120-50-50-50 min LRGB; Bernese Highlands; © 2011 Radek Chromik [32]


The galaxy was discovered on 13 September 1784 by the German-British astronomer William Herschel with his self-made 18.7 inch f/12.8 reflecting telescope in Slough, England. He recorded it as III 177, Class III standing for very faint nebulae. He noted: «Very faint, considerably large, irregularly round, resolvable, 2 or 3' in diameter.» [463] John L. E. Dreyer entered the galaxy as NGC 925 in his «New General Catalogue of Nebulae and Clusters of Stars» published in 1888. [313]

Physical Properties

The galaxy NGC 925 is an H-II galaxy of the morphological type SAB(s)d and has a redshift of z ≈ 0.00185, which corresponds to a distance of about 7 Mpc to 10 Mpc. It belongs to the NGC 1023 Galaxy Group. [145]

Revised+Historic NGC/IC Version 22/9, © 2022 Dr. Wolfgang Steinicke [277]
Designation NGC 925
Type Gx (SBcd)
Right Ascension (J2000.0) 02h 27m 16.8s
Declination (J2000.0) +33° 34' 44"
Diameter 10.5 × 5.9 arcmin
Photographic (blue) magnitude 10.7 mag
Visual magnitude 10.1 mag
Surface brightness 14.4 mag·arcmin-2
Position Angle 102°
Redshift (z) 0.001845
Distance derived from z 7.79 Mpc
Metric Distance 8.570 Mpc
Dreyer Description cF, cL, E, vgbM, 2 st 13 np
Identification, Remarks UGC 1913, MCG 5-6-45, CGCG 504-85, IRAS 02243+3321, KARA 105, KUG 0224+333

Finder Chart

The galaxy is located in the Triangulum constellation. The best time to observe is July to February, when it is highest at night.

Finder Chart Amatha Galaxy (NGC 925)
Amatha Galaxy (NGC 925) in constellation Triangulum. Charts created using SkySafari 6 Pro and STScI Digitized Sky Survey. Limiting magnitudes: Constellation chart ~6.5 mag, DSS2 close-ups ~20 mag. [149, 160]

More Objects Nearby (±15°)