48 Persei, a blue main-sequence star in Perseus
48 Persei is a blue main-sequence star in the constellation Perseus. At 476 light years away, it is the 492nd brightest star in the Earth's sky, where it shines at an apparent visual magnitude of 3.96.
48 Persei (HIP 19343)
48 Persei is a blue main-sequence star in the constellation Perseus. At 476 light years away, it is the 492nd brightest star in the Earth's sky, where it shines at an apparent visual magnitude of 3.96. The iron abundance of 48 Persei is -0.04 (91.2% of the Sun). It is moving through the Galaxy at a speed of 29.3 km/s relative to the Sun. Its projected Galactic orbit carries it between 22,500 and 25,000 light years from the center of the Galaxy.
Sky position: RA 4h 8.7m, Dec +47° 42.6'
Common designations: c Persei, 48 Persei, HIP 19343, HD 25940
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Brightest stars in Perseus:
(list all)
| Rank | Mag. | Star |
| 4 | 2.90 | Epsilon Persei |
| 5 | 2.91 | Gamma Persei |
| 6 | 3.01 | Delta Persei |
| 7 | 3.32 | Gorgonea Tertia |
| 8 | 3.77 | Miram |
| 9 | 3.77 | Nu Persei |
| 10 | 3.79 | Misam |
| 11 | 3.84 | Atik |
| 12 | 3.93 | Tau Persei |
13
| 3.96
) 48 Persei
| Rank | Mag. | Star |
| 14 | 3.98 | Menkhib |
| 15 | 4.01 | Phi Persei |
| 16 | 4.05 | Iota Persei |
| 17 | 4.10 | Theta Persei |
| 18 | 4.12 | Mu Persei |
| 19 | 4.22 | 16 Persei |
| 20 | 4.25 | Lambda Persei |
Hover over other bright stars to identify or click to jump.
Galactic Orbit of 48 Persei
(compared to the Sun)
E
ccentricity: 5.2% vs. 16.0%Angle φ : -133.1°vs. 26.0°
Semi-major axis : 7,285 pc vs. 8,686 pc
Semi-minor axis: 7,275 pc vs. 8,574 pc
Focus-to-center
: 377 pcvs. 1,388 pcSemilatus rectum : 7,265 pc vs. 8,464 pc
Perigalacticon: 6,908 pc vs. 7,297 pc
Apogalacticon
: 7,661 pcvs. 10,074 pcSome Tabulated XHIP Data for 48 Persei
(see also: SIMBAD)
Astrometry
2007A&A...474..653V
| Position | Proper Motion | |
| Right Ascension: | 62.16530550° ±0.13 mas | 21.73 ±0.16 mas/yr. |
| Declination: | 47.71259362° ±0.10 mas | -33.61 ±0.15 mas/yr. |
| Galactic Longitude: | 153.65415556° | 38.73 mas/yr. |
| Galactic Latitude: | -3.04508083° | -10.09 mas/yr. |
Parallax: 6.84 ± 0.16 mas
Spectrography
Spectral Type: B2.5Ve 1999A&AS..137..147S.
Radial Velocity: 9.50 ±1.00 km/s [A rating] 2006AstL...32..759G.
Iron Abundance [Fe/H]:
-0.04 dex
2011A&A...525A..71W.
Photometry
| band | magnitude | Abs. Mag. |
| U | 3.46 | -2.36 |
| B | 3.94 | -1.89 |
| V | 3.96 | -1.86 |
| R | ||
| I | 3.92 | -1.90 |
| J | 3.98 | -1.85 |
| H | 3.90 | -1.92 |
| K | 3.80 | -2.03 |
B-V: -0.02 V-I: +0.04
Derivations
Heliocentric distance: 146.10 pc (2.3% margin of error)
Galactocentric distance: 7,531 pc
Transverse velocity: 27.7 km/s
3D heliocentric position and motion:
|
toward: |
Galactic center | Galactic rotation | North Galactic Pole |
| Position ( X, Y, Z) | -130.7 pc | 64.7 pc | -7.8 pc |
| Velocity (U, V, W) | -20.1 km/s | -20.0 km/s | -7.5 km/s |