SDSS J004011.38+272353.0

All names: SDSS J004011.38+272353.01, Gaia DR2 2809357354062968704, Gaia DR3 2809357354062968704, J0040+2723, Gaia EDR3 2809357354062968704, SDSS J004011.38+272353.0

Parameter Unit Gaia EDR3 SDSS DR12 Coutu et al. 2019 MWDD H Gaia DR2 Stilism Kepler et al. 2016 Simbad Vincent et al. 2023
Right ascension 00 40 11.41 (2) 00 40 11.38 00 40 11.33 00 40 11.41 (1) 00 40 11.33 (2)
Declination 27 23 53.04 (0.8) 27 23 53.00 27 23 53.11 27 23 53.05 (1) 27 23 53.13 (0.8)
Spectral type DZ DZ DZ DZ DZ
Effective temperature [K] 6448.0 (375) 10909.0 6739.0 (73)
log(g) [cgs] 7.71 8.94 8.00 (0)
Mass [M] 0.4174 1.168
log(Luminosity) [L]
Cooling age [Gyr] 1.3400 2.0830
log(H/He) <-3.611
log(C/He)
log(Ca/He) -10.3907 (0.2) -9.318
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] 3.89 (2) 3.57 3.57 (2) 3.89 (2)
Distance [pc] 257.32 (102) 279.98 (155) 279.98 (155) 257.32 (102)
Composition He He He
Proper motion (right ascension) [mas/yr] 69.69074599 (2) 72.3647262 (4) 69.691 (2)
Proper motion (declination) [mas/yr] -5.174464674 (1) -4.219899525 (3) -5.174 (1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 21.72 (0.2) 21.54 (0.2) 21.54 (0.2)
g magnitude 20.92 (0.04) 20.90 (0.04) 20.90 (0.04)
r magnitude 20.65 (0.04) 20.64 (0.04) 20.64 (0.04)
i magnitude 20.59 (0.06) 20.58 (0.06) 20.58 (0.06)
z magnitude 21.43 (0.5) 21.40 (0.5)
G magnitude 20.73 (0.1) 20.81 20.73 (0.01)
BP magnitude 20.83 (0.1) 20.82
RP magnitude 20.19 (0.2) 20.34
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.044

* 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.