WD 0925+189

All names: WD 0925+189, LP 427-59, 09286+1841, SDSS J092840.28+184113.6, G 41-39, USNO-B1.0 1086-00176971, G 49-7, 2MASS J09284020+1841154, LSPM J0928+1841, SDSS J092840.27+184113.7, GALEX J092840.2+184114, NLTT 21844, Gaia DR3 633911196927706880, PSO J142.1682+18.6865, WDJ092840.23+184114.96, SDSS J092840.28+184113.7, TIC 91898005, Gaia DR2 633911196927706880, J0928+1841, GEN# +9.80041039, PM J09286+1841, Gaia EDR3 633911196927706880

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 O'Brien et al. 2024 Caron et al. 2023 McCleery et al. 2020 Kilic 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) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 28 40.40 (0.06) 09 28 40.28 09 28 40.40 (0.1) 09 28 40.40 (0.1) 09 28 40.40 09 28 40.23 (0.06) 09 28 40.40 09 28 39.79 09 28 40.28
Declination 18 41 10.99 (0.05) 18 41 13.74 18 41 11.12 (0.09) 18 41 11.12 (0.09) 18 41 10.99 18 41 14.96 (0.05) 18 41 11.12 18 41 10.32 18 41 13.71
Spectral type DA DA DA DA DA DA DA DA DA DA DA+DC DA DA
Effective temperature [K] 7634.0 (91) 7880.0 (33) 7604.3 (65) 7765.0 (38) 7675.0 (75) 7707.0 7730.0 (116) 7632.0 (47) 7531.0 (21)
log(g) [cgs] 8.40 (0.03) 8.47 (0.008) 8.41 (0.02) 8.45 (0.008) 8.43 (0.02) 8.43 8.45 (0.07) 8.40 (0.01) 8.24 (0.03)
Mass [M] 0.85 (0.02) 0.896 (0.006) 0.881 (0.007) 0.872 (0.01) 0.873 0.88 (0.05) 0.853 (0.009) 0.737 (0.02)
log(Luminosity) [L] -3.56
Cooling age [Gyr] 2.9400 2.8030 (0.1) 2.7690
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] 27.41 (0.07) 27.41 (0.07) 27.62 (0.1) 27.62 (0.1) 27.62 (0.1) 27.62 (0.1) 27.41 27.41 (0.07) 27.62 (0.1)
Distance [pc] 36.48 (0.09) 36.48 (0.09) 36.21 (0.1) 36.20 (0.1) 36.20 (0.1) 36.20 (0.1) 35.90 (0.9) 36.48 36.48 (0.09) 36.20 (0.1)
Composition H H H H H
Proper motion (right ascension) [mas/yr] 157.7193207 (0.07) 157.7862194 (0.2) 157.719 (0.07) 157.786
Proper motion (declination) [mas/yr] -247.9832361 (0.06) -247.9666563 (0.1) -247.983 (0.06) -247.967
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity yes
B magnitude 16.91
V magnitude 16.64
R magnitude 16.40
I magnitude
J magnitude 16.03 (0.01) 15.99 (0.07) 15.99 15.99 (0.07)
H magnitude 16.27 (0.2) 16.27 (0.2) 16.27 16.27 (0.2)
K magnitude 15.68 (0.2) 15.68 (0.2) 15.68 15.68 (0.2)
u magnitude 17.08 (0.008) 17.02 (0.008) 17.09 17.08 (0.008) 17.02 (0.008) 17.10 (0.03)
g magnitude 16.69 (0.004) 16.70 16.66 (0.004) 16.63 (0.004) 16.75 (0.02)
r magnitude 16.58 (0.005) 16.58 16.58 (0.003) 16.55 (0.004) 16.58 (0.02)
i magnitude 16.57 (0.005) 16.57 16.59 (0.004) 16.55 (0.004) 16.57 (0.02)
z magnitude 16.68 (0.009) 16.68 16.68 (0.004) 16.64 (0.01) 16.68 (0.02)
G magnitude 16.53 (0.004) 16.55 16.55 16.53 16.53 (0.003) 16.55
BP magnitude 16.68 (0.004) 16.68 16.68
RP magnitude 16.26 (0.004) 16.27 16.27
Pan g magnitude 16.66 (0.003) 16.66 (0.004) 16.66 (0.004)
Pan r magnitude 16.58 (0.003) 16.58 (0.003) 16.58 (0.003)
Pan i magnitude 16.59 (0.004) 16.59 (0.004) 16.59 (0.004)
Pan z magnitude 16.68 (0.005) 16.68 (0.004) 16.68 (0.004)
Pan y magnitude 16.72 (0.008) 16.72 (0.008) 16.72 (0.008)
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.