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
Spectra without link are available upon request
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.