SDSS J085529.22+052405.1

All names: WD 0852+055, SDSS J085529.22+052405.1, SDSS J085529.23+052405.1, SDSS J085529.23+052405.2, Gaia DR2 582006173558312704, Gaia DR3 582006173558312704, SDSS J085529.22+052405.2, GALEX J085529.2+052405, Gaia EDR3 582006173558312704

Parameter Unit Gaia EDR3 SDSS DR12 MWDD H Gaia DR2 Stilism Tremblay et al. 2011 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 55 29.20 (0.1) 08 55 29.23 08 55 29.20 (0.2) 08 55 29.20 08 55 29.23 (0.1) 08 55 29.23 08 55 29.40 08 55 29.23
Declination 05 24 05.20 (0.08) 05 24 05.20 05 24 05.20 (0.1) 05 24 05.20 05 24 05.28 (0.08) 05 24 05.17 05 23 59.64 05 24 05.18
Spectral type DA DA DA DA DA_auto DA DA DA
Effective temperature [K] 9528.0 9550.0 (100) 9219.0 (226) 9672.0 (71) 9520.0 (74)
log(g) [cgs] 8.00 8.08 (0.1) 7.88 (0.06) 8.32 (0.1) 8.20 (0.1)
Mass [M] 0.599 0.65 (0.08) 0.527 (0.04) 0.716 (0.07)
log(Luminosity) [L]
Cooling age [Gyr] 0.6837 0.7762
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] 5.43 (0.2) 5.51 (0.2) 5.43 5.43 (0.2)
Distance [pc] 184.25 (6) 181.38 (8) 184.25 184.25 (6)
Composition H H
Proper motion (right ascension) [mas/yr] -26.8932805 (0.2) -27.02815696 (0.4) -26.893 (0.2)
Proper motion (declination) [mas/yr] -4.925082714 (0.1) -4.844278231 (0.3) -4.925 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 18.42 (0.05)
H magnitude 18.30 (0.1)
K magnitude 18.40 (0.2)
u magnitude 19.13 (0.02) 19.13 (0.02) 19.12 (0.03) 19.11 19.12 (0.03)
g magnitude 18.66 (0.008) 18.66 (0.008) 18.69 (0.02) 18.68 18.67 (0.02)
r magnitude 18.69 (0.01) 18.69 (0.01) 18.68 (0.02) 18.67 18.67 (0.02)
i magnitude 18.80 (0.01) 18.80 (0.01) 18.80 (0.02) 18.80 18.79 (0.02)
z magnitude 18.99 (0.05) 18.98 (0.05) 18.93 (0.05) 18.92 18.92 (0.05)
G magnitude 18.61 (0.02) 18.65 18.61 18.61 (0.003)
BP magnitude 18.70 (0.02) 18.69
RP magnitude 18.50 (0.02) 18.45
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.013

* 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.