UU Aurigae

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UU Aurigae
Observation data
Epoch J2000      Equinox J2000
Constellation Auriga
Right ascension 06h 36m 32.8364s
Declination +38° 26′ 43.8″
Apparent magnitude (V) 5.446
Characteristics
Spectral type C5II
B−V color index 2.61
R−I color index 1.43
Variable type Semiregular variable
Astrometry
Radial velocity (Rv) 12 km/s
Proper motion (μ) RA: -1.76 mas/yr
Dec.: -21.41 mas/yr
Parallax (π) 1.8 ± 0.81 mas
Distance approx. 1,800 ly
(approx. 600 pc)
Absolute magnitude (MV) -3.19
Details
Mass 2.8±1.1 M
Radius 465±130 R
Luminosity 15,800 L
Temperature 2,820 K
Orbit
Companion CCDM 06365+3827 B
Semi-major axis (a) 17.9"
Inclination (i) 222°
Other designations
GC 8581, SAO 59280, BD+38° 1539, HD 46687, HIP 31579, HR 2405.
Database references
SIMBAD data
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)

UU Aurigae is a carbon star and binary star in the constellation Auriga. It is approximately 1810 light-years from Earth.

UU Aurigae is a carbon-rich C-type giant, with a mean apparent magnitude of +5.4. It is classified as a semiregular variable star and its brightness varies from magnitude +7.83 to +10.0 in B with a period of 234 days.

Components[edit]

NAME Right ascension Declination Apparent magnitude (V) Spectral type Database references
IDS 06295+3831 B (BD+38 1539B) 06h 36m 31.7s +38° 26' 31 10.7 Simbad

External links[edit]