SDSS J075556.00+240113.7

All names: Gaia DR2 681264379597958528, SDSS J075555.99+240113.7, SDSS J075556.00+240113.70, Gaia EDR3 681264379597958528, SDSS J075556.00+240113.7, Gaia DR3 681264379597958528

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 07 55 56.00 (0.3) 07 55 55.99 07 55 56.00 (0.4) 07 55 56.00 (0.3) 07 55 56.00
Declination 24 01 13.68 (0.2) 24 01 13.71 24 01 13.68 (0.2) 24 01 13.74 (0.2) 24 01 13.71
Spectral type DB DB DB DB
Effective temperature [K] 14987.0 16093.0 14272.0 15405.0 (75) 15422.0 (137)
log(g) [cgs] 7.56 8.03 7.89 8.00 (0) 7.98 (0.1)
Mass [M] 0.374 0.608 0.525 0.572 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 0.1948
log(H/He) <-6.231 <-5.32
log(C/He)
log(Ca/He) <-7.28
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] 2.22 (0.4) 2.44 (0.5) 2.22 (0.4)
Distance [pc] 450.14 (74) 409.58 (89) 393.00 450.15 (74)
Composition He
Proper motion (right ascension) [mas/yr] 6.032573488 (0.3) 6.829186907 (0.8) 6.033 (0.3)
Proper motion (declination) [mas/yr] -3.438579388 (0.2) -2.99269579 (0.4) -3.439 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.09 (0.02) 19.09 (0.02) 19.11 (0.03)
g magnitude 19.15 (0.01) 19.15 (0.01) 19.16 (0.01)
r magnitude 19.45 (0.02) 19.45 (0.02) 19.44 (0.02)
i magnitude 19.67 (0.03) 19.68 (0.03) 19.67 (0.03)
z magnitude 19.90 (0.1) 19.90 (0.1) 19.86 (0.1)
G magnitude 19.28 (0.03) 19.33 19.28 (0.004)
BP magnitude 19.19 (0.03) 19.19
RP magnitude 19.37 (0.06) 19.32
Pan g magnitude 19.18 (0.01)
Pan r magnitude 19.43 (0.009)
Pan i magnitude 19.71 (0.01)
Pan z magnitude 19.89 (0.02)
Pan y magnitude 20.00 (0.05)
E(B-V) 0.035

* Constant surface field

Special notes:

Spectra

Controls

Normalize at:
Normalize by mean flux

Range:

x: to
y: to

Spectra available:

Spectra without link are available upon request

Absorption lines

Photometric filters

BVRI
ugriz

Photometric fit





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.