Gaia DR2 4484289866726156160

All names: EQ J1824+1213, Gaia DR3 4484289866726156160, J1824+1213, Gaia DR2 4484289866726156160, WDJ182458.45+121316.82, J1824+1212, Gaia EDR3 4484289866726156160

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 Caron et al. 2023 Bergeron et al. 2022 McCleery et al. 2020 Tremblay et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 18 24 58.14 (0.1) 18 24 58.15 (0.2) 18 24 58.15 18 24 58.14 18 24 58.45 (0.1) 18 24 58.15
Declination 12 12 59.57 (0.2) 12 13 00.11 (0.2) 12 13 00.11 12 12 59.57 12 13 16.82 (0.2) 12 13 00.11
Spectral type DZ DZ DZ DZ DZ DC: DZ
Effective temperature [K] 4203.0 (153) 3381.0 (42) 3414.0 (71) 3751.1 (204) 4330.0 (31) 3970.0 3776.0 4101.0 (97)
log(g) [cgs] 7.80 (0.08) 7.52 (0.02) 7.63 (0.1) 7.92 (0.04) 7.76 7.47 7.82 (0.05)
Mass [M] 0.469 (0.03) 0.346 (0.008) 0.338 (0.006) 0.439 0.3 0.474 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 11.7400 11.2100 6.8490 4.0460
log(H/He) -0.06 -0.02
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] 25.02 (0.2) 25.02 (0.2) 25.47 (0.2) 25.47 (0.2) 25.47 (0.2) 25.02 25.02 (0.2) 25.47 (0.2)
Distance [pc] 39.97 (0.3) 39.97 (0.3) 39.26 (0.4) 39.27 (0.4) 39.27 (0.4) 39.97 39.97 (0.3) 39.27 (0.4)
Composition He He
Proper motion (right ascension) [mas/yr] -280.109408 (0.2) -280.6465313 (0.4) -280.109 (0.2) -280.6465313
Proper motion (declination) [mas/yr] -1078.427823 (0.2) -1078.597962 (0.4) -1078.428 (0.2) -1078.597962
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 18.06 (0.05)
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 18.53 (0.03) 18.55 18.55 18.53 18.53 (0.003) 18.55
BP magnitude 19.26 (0.03) 19.38 19.38
RP magnitude 17.72 (0.01) 17.74 17.74
Pan g magnitude 19.51 (0.02) 19.50 (0.003)
Pan r magnitude 18.53 (0.03) 18.51 (0.01)
Pan i magnitude 18.05 (0.01) 18.04 (0.008)
Pan z magnitude 17.92 (0.0009) 17.92 (0.003)
Pan y magnitude 18.00 (0.008) 18.04 (0.08)
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.