GD 189

All names: GEN# +6.10060189, Gaia EDR3 4402583306535868544, TIC 46377509, 2MASS J15421418-0341313, EGGR 223, USNO-B1.0 0863-00299720, J1542-0341, WDJ154214.21-034131.29, Gaia DR3 4402583306535868544, Gaia DR2 4402583302239225600, GALEX J154214.3-034131, GD 189, WD 1539-035, PG 1539-035, WD 1539-03, uvby98 610060189

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Caron et al. 2023 MWDD H Gaia DR2 Stilism Gianninas et al. 2011 Koester et al. 2009 Zuckerman et al. 2003 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 15 42 14.31 (0.4) 15 42 14.30 (0.4) 15 42 14.31 15 42 14.21 (0.4) 15 42 14.30 15 42 14.23
Declination -03 41 31.87 (0.3) -03 41 31.85 (0.2) -03 41 31.87 -03 41 31.30 (0.3) -03 41 31.85 -03 41 37.68
Spectral type DA DA DA DA DA5.0 DA5
Effective temperature [K] 9651.0 (33) 9648.0 10160.0 (150) 9875.0 (6) 8021.0 9798.0 (66)
log(g) [cgs] 7.46 (0.03) 7.46 8.37 (0.06) 8.25 (0.006) 8.00 7.49 (0.03)
Mass [M] 0.34 (0.02) 0.34 0.84 (0.04) 0.35 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 0.3600 0.3794
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H) <-11.157
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] 18.82 (0.5) 18.59 (0.5) 18.59 (0.5) 18.82 18.82 (0.5) 18.59 (0.5)
Distance [pc] 53.13 (1) 53.79 (2) 53.79 (2) 31.00 53.13 53.13 (1) 53.79 (2)
Composition H H H
Proper motion (right ascension) [mas/yr] 86.16848886 (0.6) 86.03285137 (0.8) 86.168 (0.6) 86.03285137
Proper motion (declination) [mas/yr] -35.54968348 (0.4) -35.96664625 (0.6) -35.55 (0.4) -35.96664625
Variability NOV
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.45
V magnitude 15.20 15.20
R magnitude 15.00
I magnitude
J magnitude 15.06 (0.004) 15.01 (0.04)
H magnitude 15.03 (0.07) 15.03 (0.07)
K magnitude 15.04 (0.01) 14.94 (0.1)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 15.30 (0.002) 15.20 15.30 15.30 (0.007) 15.20
BP magnitude 15.23 (0.002) 15.22 15.22
RP magnitude 15.07 (0.002) 15.07 15.07
Pan g magnitude 15.19 (0.003) 15.19 (0.003)
Pan r magnitude 15.28 (0.002) 15.28 (0.002)
Pan i magnitude 15.41 (0.004) 15.41 (0.004)
Pan z magnitude 15.58 (0.01) 15.58 (0.01)
Pan y magnitude 15.67 (0.006) 15.67 (0.006)
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.