GD 86

All names: GEN# +6.10060086, WDJ073427.47+484115.28, Gaia DR2 976040702520790400, GALEX J073427.3+484113, LSPM J0734+4841, PM J07344+4841, 2MASS J07342744+4841152, TIC 453373950, Gaia DR3 976040702520790400, 1SWASP J073427.45+484115.6, Gaia EDR3 976040702520790400, J0734+4841, 07344+4841, WD 0730+48, NLTT 18067, WD 0730+487, USNO-B1.0 1386-00187477, GD 86

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Jewett et al. 2024 O'Brien et al. 2024 McCleery et al. 2020 MWDD H Gaia DR2 Stilism Limoges et al. 2015 Gianninas et al. 2011 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 07 34 27.25 (0.02) 07 34 27.26 (0.04) 07 34 27.26 (0.04) 07 34 27.25 07 34 27.47 (0.02) 07 34 27.26 07 34 27.77
Declination 48 41 12.19 (0.02) 48 41 12.29 (0.03) 48 41 12.29 (0.03) 48 41 12.19 48 41 15.28 (0.02) 48 41 12.29 48 41 20.04
Spectral type DA DA DA DA DA DA DA DA3.4 DA3
Effective temperature [K] 14094.0 (88) 14100.0 (243) 14244.8 (138) 14098.0 14870.0 (330) 15010.0 (331) 14388.0 (128)
log(g) [cgs] 8.60 8.60 (0.01) 8.61 (0.009) 8.60 8.58 (0.05) 8.57 (0.05) 8.61 (0.005)
Mass [M] 0.987 (0.003) 0.984 (0.009) 0.989 0.98 (0.03) 0.97 (0.03) 0.994 (0.004)
log(Luminosity) [L] -2.51
Cooling age [Gyr] 0.6500 (0.01) 0.6233
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] 30.76 (0.03) 30.76 (0.03) 30.85 (0.04) 30.85 (0.04) 30.76 30.76 (0.03) 30.85 (0.04)
Distance [pc] 32.51 (0.03) 32.51 (0.03) 32.42 (0.05) 32.42 (0.05) 35.00 (2) 36.00 32.51 32.51 (0.03) 32.42 (0.05)
Composition H H H H H
Proper motion (right ascension) [mas/yr] -132.1407592 (0.03) -132.1820781 (0.07) -132.141 (0.03) -132.1820781
Proper motion (declination) [mas/yr] -192.8707018 (0.03) -192.8499074 (0.06) -192.871 (0.03) -192.8499074
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 14.87
V magnitude
R magnitude 14.90
I magnitude
J magnitude 15.14 (0.04)
H magnitude 15.19 (0.09)
K magnitude 15.39 (0.2)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 14.93 (0.001) 14.95 14.95 14.93 14.93 (0.003) 14.95
BP magnitude 14.91 (0.001) 14.89 14.89
RP magnitude 15.00 (0.002) 15.01 15.01
Pan g magnitude 14.84 (0.002)
Pan r magnitude 15.07 (0.005)
Pan i magnitude 15.31 (0.002)
Pan z magnitude 15.54 (0.002)
Pan y magnitude 15.71 (0.007)
E(B-V) 0.001

* 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.