WD 0307+077

All names: Gaia DR2 13611477211053824, HS 0307+0746, 2MASS J03100916+0757324, TIC 377062618, GALEX J031009.1+075732, WDJ031009.16+075732.08, USNO-B1.0 0979-00036664, WD 0307+077, Gaia DR3 13611477211053824, Gaia EDR3 13611477211053824, J0310+0757

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Caron et al. 2023 MWDD H Gaia DR2 Stilism Farihi et al. 2010 Koester et al. 2009 Kilic et al. 2006 Koester et al. 2005 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 03 10 09.08 (0.05) 03 10 09.08 (0.08) 03 10 09.08 03 10 09.16 (0.05) 03 10 09.08 03 10 08.52
Declination 07 57 30.61 (0.04) 07 57 30.66 (0.06) 07 57 30.61 07 57 32.07 (0.04) 07 57 30.66 07 57 33.12
Spectral type DAZ DAZ DAZ DAZ DA DA DAZ DAZ4.9
Effective temperature [K] 10184.0 (33) 10076.0 10200.0 10127.0 (14) 10200.0 10200.0 9985.0 (98)
log(g) [cgs] 8.01 (0.009) 7.99 8.07 (0.01) 8.10 8.10 7.98 (0.02)
Mass [M] 0.607 (0.007) 0.594 0.66 0.587 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.6100 0.5824 0.7300
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H) -7.1 -7.6 -7.6
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] 15.16 (0.06) 15.18 (0.1) 15.18 (0.1) 15.16 15.16 (0.06) 15.18 (0.1)
Distance [pc] 65.98 (0.3) 65.88 (0.4) 65.86 (0.4) 65.98 65.98 (0.3) 65.86 (0.4)
Composition H H H H H
Proper motion (right ascension) [mas/yr] -73.72716145 (0.05) -73.73161759 (0.1) -73.727 (0.05) -73.73161759
Proper motion (declination) [mas/yr] -91.19685198 (0.05) -91.39749838 (0.1) -91.197 (0.05) -91.39749838
Variability
Magnetic
Bd [MG]
Infrared excess (disk) yes
Binarity
B magnitude 16.50 17.10
V magnitude 16.40
R magnitude 16.60
I magnitude
J magnitude 16.18 (0.01) 16.39 (0.1)
H magnitude 16.03 (0.2) 16.03 (0.2)
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 16.22 (0.003) 16.25 16.22 16.22 (0.003) 16.25
BP magnitude 16.28 (0.003) 16.28 16.28
RP magnitude 16.14 (0.006) 16.14 16.14
Pan g magnitude 16.21 (0.002) 16.21 (0.002)
Pan r magnitude 16.31 (0.002) 16.31 (0.002)
Pan i magnitude 16.46 (0.004) 16.46 (0.003)
Pan z magnitude 16.63 (0.003) 16.63 (0.003)
Pan y magnitude 16.73 (0.008) 16.73 (0.007)
E(B-V) 0.002

* Constant surface field

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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.