EGGR 183

All names: USNO-B1.0 0981-00220095, SDSS J101502.55+080636.1, ** LDS 3970A, USNO 607, G 43-38, TIC 349948660, PLX 2404.01, WDS J10151+0806A, GALEX J101502.5+080636, G43-38, LTT 12749, PSO J153.7599+08.1104, WD 1012+083A, G 44-7, SDSS J101502.56+080636.1, WDJ101502.61+080635.70, 2MASS J10150260+0806356, 1012+083A, 10150+0806N, J1015+0806, Gaia DR3 3875652014008894720, GEN# +9.80043038, WD 1012+083.1, Gaia DR2 3875652014008894720, Gaia EDR3 3875652014008894720, WIRED J101502.55+080636.1, PM J10150+0806N, LSPM J1015+0806N, WD 1012+08, LP 549-33, EGGR 183, NLTT 23798

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 O'Brien et al. 2024 Caron et al. 2023 McCleery et al. 2020 Kilic et al. 2020 Blouin et al. 2019 Leggett et al. 2018 MWDD H Gaia DR2 Bedard et al. 2017 Stilism Limoges et al. 2015 Gianninas et al. 2011 Tremblay et al. 2011 Bergeron et al. 2001 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 10 15 02.30 (0.05) 10 15 02.55 10 15 02.31 (0.08) 10 15 02.31 (0.08) 10 15 02.30 10 15 02.61 (0.05) 10 15 02.31 10 15 02.56 10 15 04.08 10 15 02.56
Declination 08 06 38.32 (0.05) 08 06 36.12 08 06 38.24 (0.07) 08 06 38.24 (0.07) 08 06 38.32 08 06 35.70 (0.05) 08 06 38.24 08 06 36.11 08 06 21.60 08 06 36.10
Spectral type DA DA DA DA DA DA DA7.6 DA DA DA DA DA DA DA DA7.5 DA DA_auto DA7 DA DA
Effective temperature [K] 6653.0 (24) 6612.0 (56) 6650.0 (15) 6574.6 (40) 6647.0 (33) 6660.0 (55) 6650.0 (117) 6656.0 6689.0 (81) 6530.0 (105) 6720.0 (128) 6750.0 (30) 6750.0 (150) 6704.0 (39) 7441.0 (18) 6609.0 (23)
log(g) [cgs] 7.96 (0.006) 7.95 (0.03) 7.95 (0.005) 7.93 (0.02) 7.95 (0.01) 7.96 (0.02) 8.00 (0.03) 7.95 7.89 (0.1) 7.89 (0.1) 8.02 (0.2) 8.03 (0.06) 8.02 (0.2) 7.98 (0.01) 9.00 (0.006) 7.84 (0.04)
Mass [M] 0.567 (0.005) 0.56 (0.01) 0.561 (0.004) 0.563 (0.008) 0.57 (0.01) 0.593 (0.02) 0.563 0.44 (0.2) 0.53 (0.07) 0.6 (0.1) 0.61 (0.04) 0.6 (0.1) 0.579 (0.009) 0.507 (0.02)
log(Luminosity) [L] -3.52 -3.53 (0.09)
Cooling age [Gyr] 1.6600 1.6270 (0.06) 1.7390 (0.1) 1.6030 1.7783 1.7200 (0.5)
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] 33.91 (0.06) 33.91 (0.06) 33.76 (0.1) 33.76 (0.1) 33.76 (0.1) 34.88 (0.3) 33.76 (0.1) 34.50 (4) 34.50 (4) 33.91 33.91 (0.06) 33.76 (0.1) 34.50 (4)
Distance [pc] 29.49 (0.05) 29.49 (0.05) 29.62 (0.1) 29.62 (0.1) 29.62 (0.1) 28.67 (0.2) 29.62 (0.1) 28.50 (3) 29.00 (3) 30.00 28.99 (3) 29.49 29.49 (0.05) 29.62 (0.1) 28.99 (3)
Composition H H H H H H H H H
Proper motion (right ascension) [mas/yr] -288.1651931 (0.06) -288.4353031 (0.1) -288.165 (0.06) -288.435 -284.7
Proper motion (declination) [mas/yr] 163.8266168 (0.06) 163.9043011 (0.1) 163.827 (0.06) 163.904 162.7
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity yes
B magnitude 16.44 16.57
V magnitude 16.03
R magnitude 15.76 15.70
I magnitude 15.46
J magnitude 15.14 (0.004) 15.25 (0.06) 15.20 15.15 (0.005)
H magnitude 14.93 (0.006) 15.13 (0.1) 14.99 14.94 (0.006)
K magnitude 14.90 (0.009) 14.96 (0.1) 14.94 14.92 (0.01)
u magnitude 16.78 (0.007) 16.78 (0.007) 16.78 (0.007) 16.78 (0.007) 16.77 (0.02) 16.76 16.80 (0.02)
g magnitude 16.16 (0.004) 16.14 (0.005) 16.16 (0.004) 16.19 (0.01) 16.18 16.19 (0.01)
r magnitude 15.92 (0.004) 15.93 (0.006) 15.92 (0.004) 15.94 (0.02) 15.93 15.94 (0.02)
i magnitude 15.84 (0.004) 15.87 (0.006) 15.84 (0.004) 15.86 (0.02) 15.85 15.84 (0.02)
z magnitude 15.86 (0.006) 15.89 (0.003) 15.86 (0.006) 15.88 (0.01) 15.87 15.86 (0.01)
G magnitude 15.92 (0.005) 15.93 15.93 15.92 15.92 (0.003) 15.93
BP magnitude 16.14 (0.005) 16.14 16.14
RP magnitude 15.54 (0.003) 15.55 15.55
Pan g magnitude 16.14 (0.006) 16.14 (0.005) 16.14 (0.005)
Pan r magnitude 15.93 (0.006) 15.93 (0.006) 15.93 (0.006)
Pan i magnitude 15.87 (0.006) 15.87 (0.007) 15.88 (0.007)
Pan z magnitude 15.89 (0.002) 15.89 (0.002) 15.89 (0.002)
Pan y magnitude 15.92 (0.006) 15.92 (0.005) 15.92 (0.005)
E(B-V) 0.000

* 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.