EGGR 322

All names: WD 0751+57, EGGR 322, J0756+5741, SBSS 0752+578, WD 0751+578, 2MASS J07560123+5742002, G 193-78, Gaia DR3 1081813343155426560, Gaia EDR3 1081813343155426560, 07560+5741, G193-78, NLTT 18612, PM J07560+5741, TIC 53426287, Gaia DR2 1081813343155426560, PLX 1859.01, USNO 428, LSPM J0756+5741, SBSS 0751+578, USNO-B1.0 1477-00230619, WDJ075601.23+574159.82, GEN# +9.80193078, LHS 6138

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 Caron et al. 2023 McCleery et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Limoges et al. 2015 Bergeron et al. 2001 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 07 56 01.11 (0.02) 07 56 01.11 (0.03) 07 56 01.11 (0.03) 07 56 01.11 07 56 01.23 (0.02) 07 56 01.11 07 56 01.87
Declination 57 41 52.80 (0.02) 57 41 53.02 (0.03) 57 41 53.02 (0.03) 57 41 52.80 57 41 59.82 (0.02) 57 41 53.02 57 42 14.04
Spectral type DC DC DC DC DC DC DC DC DC5 DC5
Effective temperature [K] 9614.0 (100) 9497.0 (40) 9577.4 (61) 9972.0 9852.0 9290.0 (171) 9770.0 (360) 9632.0 (54)
log(g) [cgs] 8.17 (0.02) 8.12 (0.006) 8.16 (0.02) 8.33 8.26 7.90 (0.2) 8.01 (0.2) 8.17 (0.008)
Mass [M☉] 0.685 (0.01) 0.65 (0.006) 0.81 0.744 0.52 (0.1) 0.58 (0.1) 0.687 (0.008)
log(Luminosity) [L☉] -2.92 -2.89 (0.1)
Cooling age [Gyr] 0.8800 1.0070 0.9439 0.7100 (0.2)
log(H/He) -4.4
log(C/He)
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] 34.02 (0.03) 34.02 (0.03) 33.96 (0.05) 33.96 (0.05) 33.96 (0.05) 28.40 (4) 28.40 (4) 34.02 34.02 (0.03) 33.96 (0.05) 27.00 (4)
Distance [pc] 29.39 (0.02) 29.39 (0.03) 29.45 (0.04) 29.45 (0.04) 29.45 (0.04) 35.20 (5) 35.21 (5) 29.39 29.39 (0.02) 29.45 (0.04) 37.04 (5)
Composition He He He He
Proper motion (right ascension) [mas/yr] -63.73408243 (0.02) -63.80212968 (0.07) -63.734 (0.02) -63.80212968
Proper motion (declination) [mas/yr] -438.4435326 (0.02) -438.4823039 (0.06) -438.444 (0.02) -438.4823039
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.17 15.16
V magnitude 15.08
R magnitude 15.00 14.90
I magnitude 14.91
J magnitude 14.99 (0.006) 14.94 14.97 (0.04)
H magnitude 14.96 (0.06) 14.94 14.96 (0.06)
K magnitude 14.97 (0.1) 14.96 14.97 (0.1)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 15.02 (0.001) 15.04 15.04 15.02 15.02 (0.003) 15.04
BP magnitude 15.06 (0.001) 15.04 15.04
RP magnitude 14.93 (0.002) 14.93 14.93
Pan g magnitude 15.05 (0.003) 15.05 (0.003)
Pan r magnitude 15.11 (0.002) 15.11 (0.002)
Pan i magnitude 15.27 (0.002) 15.27 (0.002)
Pan z magnitude 15.41 (0.002) 15.41 (0.002)
Pan y magnitude 15.54 (0.005) 15.54 (0.004)
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.