WD 2306+130

All names: Gaia DR2 2814942392095501952, SDSS J230830.51+131923.4, HS 2306+1303, TIC 217978865, WD 2306+130, Gaia EDR3 2814942392095501952, 2MASS J23083050+1319232, Gaia DR3 2814942392095501952, GALEX J230830.5+131924, WDJ230830.51+131923.36, PG 2306+131, J2308+1319, KUV 23060+1303, USNO-B1.0 1033-00658189, SDSS J230830.51+131923.3

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Kilic et al. 2020 MWDD H Gaia DR2 Stilism Gianninas et al. 2011 Koester et al. 2009 Mukadam et al. 2004 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 23 08 30.60 (0.03) 23 08 30.60 (0.05) 23 08 30.60 23 08 30.51 (0.03) 23 08 30.60 23 08 30.19
Declination 13 19 23.86 (0.03) 13 19 23.84 (0.04) 13 19 23.86 13 19 23.36 (0.03) 13 19 23.84 13 19 21.72
Spectral type DA DA DA DA DA DA3.7 DA4
Effective temperature [K] 13047.0 (142) 13045.0 (142) 12944.0 13800.0 (284) 13513.0 (51) 13000.0 13477.0 (141)
log(g) [cgs] 7.97 (0.008) 7.97 (0.008) 7.96 8.03 (0.05) 7.83 (0.006) 8.00 (0.009)
Mass [M] 0.591 (0.006) 0.591 (0.007) 0.587 0.62 (0.03) 0.607 (0.007)
log(Luminosity) [L]
Cooling age [Gyr] 0.2895
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 16.84 (0.04) 16.86 (0.06) 16.84 16.84 (0.04) 16.86 (0.06)
Distance [pc] 59.38 (0.1) 59.31 (0.2) 53.00 59.38 59.38 (0.1) 59.31 (0.2)
Composition H H H
Proper motion (right ascension) [mas/yr] 82.4586444 (0.04) 82.43866151 (0.09) 82.459 (0.04) 82.43866151
Proper motion (declination) [mas/yr] 30.8830895 (0.03) 30.88687582 (0.07) 30.883 (0.03) 30.88687582
Variability NOV NOV
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.38
V magnitude 15.10 15.10
R magnitude 15.30
I magnitude
J magnitude 15.62 (0.006)
H magnitude 15.63 (0.01)
K magnitude 15.73 (0.02)
u magnitude 15.65 (0.005) 15.65 (0.005)
g magnitude 15.26 (0.004) 15.26 (0.004)
r magnitude 15.50 (0.004) 15.50 (0.004)
i magnitude 15.72 (0.005) 15.72 (0.005)
z magnitude 15.96 (0.007) 15.96 (0.007)
G magnitude 15.38 (0.002) 15.40 15.38 15.38 (0.003) 15.40
BP magnitude 15.37 (0.002) 15.37 15.37
RP magnitude 15.44 (0.003) 15.45 15.45
Pan g magnitude 15.29 (0.007)
Pan r magnitude 15.51 (0.002)
Pan i magnitude 15.77 (0.006)
Pan z magnitude 15.98 (0.003)
Pan y magnitude 16.12 (0.004)
E(B-V) 0.004

* Constant surface field

Special notes:

Spectra

Controls

Normalize at:
Normalize by mean flux

Range:

x: to
y: to

Spectra available:

Spectra without link are available upon request

Absorption lines

Photometric filters

BVRI
ugriz

Photometric fit





The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.