GJ 1015 B

All names: LTT 17144, WDS J00415+5550B, ** GIC 13B, GJ 1015 B, TIC 312150098, 00413+5550E, Gaia DR3 418491412783587200, CNS5 200, Gaia EDR3 418491412783587200, KPD 0038+5533, Gaia DR2 418491412783587200, NLTT 2229, PM J00413+5550E, G 218-8, G218-8, WD 0038+555, WDJ004122.04+555008.35, L 1011-92, USNO-B1.0 1458-00024231, LSPM J0041+5550E, 1SWASP J004121.46+555009.1, LTT17144, USNO 398, 2MASS J00412199+5550083, EGGR 245

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 McCleery et al. 2020 Gaia DR2 Stilism Holberg et al. 2016 Limoges et al. 2015 Sion et al. 2014 Bergeron et al. 2001 Weidemann and Koester 1995 Koester et al. 1982a Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 00 41 22.64 (0.01) 00 41 22.62 (0.02) 00 41 22.62 (0.02) 00 41 20.88 00 41 22.64 00 41 22.04 (0.01) 00 41 22.62 00 41 20.74
Declination 55 50 07.23 (0.01) 55 50 07.27 (0.02) 55 50 07.27 (0.02) 55 50 02.40 55 50 07.23 55 50 08.35 (0.01) 55 50 07.27 55 50 08.88
Spectral type DQ DQ DQ DC DQ4.6 DQ DC DB DBQ5 DBQ5
Effective temperature [K] 10487.0 (112) 10372.7 (38) 10632.0 (630) 8860.0 (2029) 10900.0 10900.0 (630) 10000.0 10000.0 (500) 10453.0 (32)
log(g) [cgs] 8.02 (0.02) 8.00 (0.009) 7.95 (0.07) 8.00 (0) 8.14 (0.07) 8.05 (0.004)
Mass [M] 0.592 (0.01) 0.58 (0.03) 0.58 (0.1) 0.67 (0.04) 0.46 (0.1) 0.612 (0.003)
log(Luminosity) [L] -3.05 -2.77 (0.04)
Cooling age [Gyr] 0.4900 0.6200 (0.05)
log(H/He)
log(C/He) -6 -6
log(Ca/He)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 43.66 (0.02) 43.66 (0.02) 43.66 (0.04) 43.66 (0.04) 43.40 (2) 43.40 (2) 0.04 43.66 43.66 (0.02) 43.66 (0.04) 46.00 (3)
Distance [pc] 22.90 (0.01) 22.90 (0.01) 22.91 (0.02) 22.91 (0.02) 23.04 (1) 20.90 (5) 23.04 23.04 (1) 22935.78 22.90 22.90 (0.01) 22.91 (0.02) 21.74 (1)
Composition He H He He He
Proper motion (right ascension) [mas/yr] 316.4948482 (0.02) 316.3868633 (0.04) 316.495 (0.02) 316.3868633
Proper motion (declination) [mas/yr] -70.08824804 (0.02) -69.99924236 (0.04) -70.088 (0.02) -69.99924236
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude 14.10 14.11
V magnitude 14.08 14.05 14.05
R magnitude 14.01 14.30
I magnitude 13.93
J magnitude 13.97 14.07 (0.04)
H magnitude 14.08
K magnitude 14.13
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 14.00 (0.0007) 14.02 14.02 14.00 14.00 (0.003) 14.02
BP magnitude 14.01 (0.0007) 13.99 13.99
RP magnitude 13.95 (0.0006) 13.95 13.95
Pan g magnitude 14.01 (0.003)
Pan r magnitude 14.12 (0.002)
Pan i magnitude 14.30 (0.004)
Pan z magnitude 14.47 (0.002)
Pan y magnitude 14.58 (0.003)
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.