7 Camelopardalis

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7 Camelopardalis

7 Camelopardalis
Observation data
Epoch J2000      Equinox J2000
Constellation Camelopardalis
Right ascension 04h 57m 17.1966s
Declination +53° 45′ 07.564″
Apparent magnitude (V) 4.452
Characteristics
Spectral type A1Va/A1IV
U−B color index −0.01
B−V color index −0.02
R−I color index −0.01
Astrometry
Radial velocity (Rv) −7.9 km/s
Proper motion (μ) RA: −24.17 mas/yr
Dec.: 7.53 mas/yr
Parallax (π) 8.68 ± 0.81 mas
Distance 380 ± 40 ly
(120 ± 10 pc)
Absolute magnitude (MV) -0.88
Details
Mass 3.9 M
Radius 5.37 R
Luminosity 195 L
Temperature 9,400K K
Rotation 45 km/s
0,00727379 Year
Orbit
Companion CCDM 04573+5345 B
D 5
Period (P) 284 yr
Semi-major axis (a) 0.78"
Eccentricity (e) 0.74
Inclination (i) 137.9°
Longitude of the node (Ω) 158.2°
Periastron epoch (T) 1986
Orbit
Companion CCDM 04573+5345 C
STF 610
Semi-major axis (a) 25.8"
Inclination (i) 240°
Other designations
HR 1568, HD 31278, BD+53° 829, HIP 23040, SAO 24929, GC 6017, ADS 3536, CCDM 04573+5345.
Database references
SIMBAD data
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)
Database references
SIMBAD data

7 Camelopardalis is a triple star system in the constellation Camelopardalis. It is approximately 376 light years from Earth.

The primary component, 7 Camelopardalis A, is a white A-type main sequence dwarf with an apparent magnitude of +4.43. Orbiting the primary with a period of 284 years is 7 Camelopardalis B, a magnitude +7.8 star which is only 0.78 arcseconds from the primary. The third component, 7 Camelopardalis C, is an eleventh magnitude star 26 arcseconds distant.


Components[edit]

NAME Right ascension Declination Apparent magnitude (V) Spectral type Database references
ADS 3536 B (BD+53 829C) 04h 57m 14.6s +53° 44' 53 11.3 Simbad


References[edit]