GD 484

All names: SDSS J130121.13+671307.3, GD 484, SDSS J130121.14+671307.4, J1301+6713, GALEX J130121.3+671307, 13013+6713, PSO J195.3395+67.2188, 2MASS J13012110+6713073, PM J13013+6713, TIC 229535313, Gaia EDR3 1679365202380970880, WD 1259+674, LSPM J1301+6713, WDJ130121.13+671307.35, USNO-B1.0 1572-00171184, Gaia DR3 1679365202380970880, Gaia DR2 1679365202380970880, SDSS J130121.13+671307.4

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 O'Brien et al. 2024 Caron et al. 2023 Kilic et al. 2020 McCleery et al. 2020 Blouin et al. 2019 MWDD H Gaia DR2 Stilism Limoges et al. 2015 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 13 01 21.52 (0.03) 13 01 21.51 (0.05) 13 01 21.51 (0.05) 13 01 21.52 13 01 21.13 (0.03) 13 01 21.51 13 01 21.02
Declination 67 13 07.79 (0.03) 67 13 07.77 (0.04) 67 13 07.77 (0.04) 67 13 07.79 67 13 07.35 (0.03) 67 13 07.77 67 13 04.80
Spectral type DA DA DA DA DA DA DA DA DA DA DA7.6
Effective temperature [K] 6666.0 (24) 6573.0 (51) 6645.0 (20) 6666.0 (24) 6604.1 (47) 6580.0 (50) 6616.0 6600.0 (109) 6684.0 (33)
log(g) [cgs] 8.26 (0.006) 8.23 (0.02) 8.25 (0.006) 8.26 (0.006) 8.25 (0.02) 8.23 (0.02) 8.24 8.09 (0.1) 8.26 (0.009)
Mass [M] 0.752 (0.006) 0.733 (0.01) 0.747 (0.005) 0.752 (0.006) 0.738 (0.01) 0.742 0.64 (0.08) 0.758 (0.008)
log(Luminosity) [L] -3.61
Cooling age [Gyr] 3.0600 2.9400 (0.1) 2.9260
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] 32.45 (0.04) 32.45 (0.04) 32.46 (0.05) 32.46 (0.05) 32.46 (0.05) 32.46 (0.05) 32.45 32.45 (0.04) 32.46 (0.05)
Distance [pc] 30.81 (0.04) 30.82 (0.04) 30.81 (0.05) 30.81 (0.05) 30.81 (0.05) 30.81 (0.05) 33.80 (1) 30.81 30.81 (0.04) 30.81 (0.05)
Composition H H H H H H
Proper motion (right ascension) [mas/yr] 142.7621548 (0.05) 142.6468239 (0.1) 142.762 (0.05) 142.6468239
Proper motion (declination) [mas/yr] 27.39809358 (0.04) 27.42211809 (0.08) 27.398 (0.04) 27.42211809
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.00
V magnitude
R magnitude 15.40
I magnitude
J magnitude 15.62 (0.07) 15.62 (0.07) 15.62 (0.07)
H magnitude 15.32 (0.1) 15.32 (0.1) 15.32 (0.1)
K magnitude 15.34 (0.2) 15.34 (0.2) 15.34 (0.2)
u magnitude 17.30 (0.009) 17.30 (0.009) 17.30 (0.009) 17.25
g magnitude 16.66 (0.003) 16.69 (0.004) 16.69
r magnitude 16.44 (0.004) 16.43 (0.004) 16.44
i magnitude 16.38 (0.003) 16.34 (0.004) 16.35
z magnitude 16.41 (0.007) 16.38 (0.009) 16.39
G magnitude 16.43 (0.003) 16.44 16.44 16.43 16.43 (0.003) 16.44
BP magnitude 16.66 (0.003) 16.65 16.65
RP magnitude 16.05 (0.004) 16.07 16.07
Pan g magnitude 16.66 (0.003) 16.66 (0.003) 16.66 (0.003)
Pan r magnitude 16.44 (0.004) 16.44 (0.004) 16.44 (0.004)
Pan i magnitude 16.38 (0.003) 16.38 (0.003) 16.38 (0.003)
Pan z magnitude 16.41 (0.006) 16.41 (0.007) 16.41 (0.007)
Pan y magnitude 16.42 (0.008) 16.42 (0.008) 16.42 (0.008)
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.