GD 175

All names: Gaia DR3 6332763530870415488, USNO 539, GEN# +6.10060175, Gaia DR2 6332763530870415488, Gaia EDR3 6332763530870415488, WD 1503-07, 2MASS J15054932-0714408, WD 1503-070, PLX 3410.01, J1505-0714, PSO J226.4546-07.2447, GJ 3889, TIC 192745310, WDJ150549.31-071440.95, GD 175, EGGR 190

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 Hardy et al. 2023a Caron et al. 2023 Blouin et al. 2019 MWDD H Gaia DR2 Stilism Ferrario et al. 2015 Gianninas et al. 2011 Zuckerman et al. 2003 Bergeron et al. 2001 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 15 05 49.09 (0.04) 15 05 49.10 (0.06) 15 05 49.09 15 05 49.31 (0.04) 15 05 49.10 15 05 49.82
Declination -07 14 41.25 (0.03) -07 14 41.24 (0.04) -07 14 41.25 -07 14 40.95 (0.03) -07 14 41.24 -07 14 40.56
Spectral type DAH DA DAH DAH DA DA DA DA DA DA DAH7.3 DAH
Effective temperature [K] 6668.0 (52) 6567.1 (8) 6889.0 (14) 6640.0 (45) 6641.0 6990.0 6920.0 (190) 6707.0 6990.0 (160) 6712.0 (36)
log(g) [cgs] 8.00 (0.02) 7.99 (0.01) 8.09 (0.003) 8.01 (0.02) 8.00 9.56 (0.2) 8.06 8.17 (0.2) 8.02 (0.01)
Mass [M] 0.591 (0.01) 0.5871997127078348 (0.01) 0.647 (0.004) 0.593 (0.01) 0.588 0.7 (0.1) 1.35 (0.1) 0.7 (0.1) 0.602 (0.009)
log(Luminosity) [L] -3.56 (0.1)
Cooling age [Gyr] 1.8800 1.7470 (0.06) 1.7210 2.0200 (0.9)
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H) <-11.540
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] 37.08 (0.04) 37.08 (0.04) 37.04 (0.07) 37.04 (0.07) 37.04 (0.07) 38.50 (6) 37.08 37.08 (0.04) 37.04 (0.07) 39.30 (55)
Distance [pc] 26.97 (0.03) 26.97 (0.03) 27.00 (0.05) 27.00 (0.05) 27.00 (0.05) 7.00 25.97 (4) 26.97 26.97 (0.03) 27.00 (0.05) 25.45 (36)
Composition H H H H H
Proper motion (right ascension) [mas/yr] -204.9950803 (0.05) -205.0583043 (0.1) -204.995 (0.05) -205.0583043
Proper motion (declination) [mas/yr] -18.85296946 (0.04) -19.04534116 (0.09) -18.853 (0.04) -19.04534116
Variability
Magnetic yes yes yes
Bd [MG] 2.3
Infrared excess (disk)
Binarity
B magnitude 16.28 16.27
V magnitude 15.88 15.89
R magnitude 15.60
I magnitude 15.33
J magnitude 15.04 (0.003) 15.08 (0.05) 15.07 15.08 (0.05)
H magnitude 14.90 (0.005) 14.99 (0.1) 14.93 14.99 (0.1)
K magnitude 14.84 (0.009) 14.85 (0.1) 14.91 14.85 (0.1)
u magnitude
g magnitude 16.00 (0.002)
r magnitude 15.79 (0.005)
i magnitude 15.73 (0.002)
z magnitude 15.75 (0.002)
G magnitude 15.76 (0.003) 15.78 15.76 15.76 (0.003) 15.78
BP magnitude 15.98 (0.003) 15.97 15.97
RP magnitude 15.40 (0.004) 15.40 15.40
Pan g magnitude 16.00 (0.003) 16.00 (0.002) 16.00 (0.002)
Pan r magnitude 15.79 (0.004) 15.79 (0.005) 15.79 (0.005)
Pan i magnitude 15.73 (0.002) 15.73 (0.002) 15.73 (0.002)
Pan z magnitude 15.75 (0.003) 15.75 (0.002) 15.76 (0.002)
Pan y magnitude 15.78 (0.004) 15.78 (0.003) 15.78 (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.