SDSS J170404.97+414109.5

All names: Gaia DR3 1353890175509030912, GALEX J170405.0+414109, EQ J1704+4141, Gaia DR2 1353890175509030912, SDSS J170404.97+414109.53, Gaia EDR3 1353890175509030912, SDSS J170404.97+414109.5, SDSS J170404.96+414109.5

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Bedard et al. 2020 MWDD H Gaia DR2 Stilism Kepler et al. 2015 Simbad
Right ascension 17 04 04.96 (0.06) 17 04 04.97 17 04 04.96 (0.09) 17 04 04.97 (0.06)
Declination 41 41 09.47 (0.07) 41 41 09.58 41 41 09.47 (0.1) 41 41 09.59 (0.07)
Spectral type DAO DAO DAO DAO
Effective temperature [K] 42838.0 (765) 27320.0 47818.0 (681)
log(g) [cgs] 7.04 (0.08) 6.21 7.19 (0.06)
Mass [M] 0.33 (0.02) 0.185
log(Luminosity) [L] 0.40 (0.07)
Cooling age [Gyr] 0.0001
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] 0.84 (0.08) 0.79 (0.1) 0.84 (0.08)
Distance [pc] 1195.33 (110) 1261.98 (170) 1195.31 (110)
Composition H H
Proper motion (right ascension) [mas/yr] -8.229773757 (0.08) -8.39138392 (0.2) -8.23 (0.08)
Proper motion (declination) [mas/yr] -7.440456091 (0.1) -7.274419522 (0.2) -7.44 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.00 (0.008) 16.99 (0.01) 17.00 (0.008)
g magnitude 17.36 (0.005) 17.37 (0.01) 17.34 (0.005)
r magnitude 17.82 (0.006) 17.82 (0.02) 17.81 (0.006)
i magnitude 18.17 (0.008) 18.18 (0.01) 18.16 (0.008)
z magnitude 18.51 (0.03) 18.51 (0.03) 18.51 (0.03)
G magnitude 17.55 (0.01) 17.58 17.55 (0.003)
BP magnitude 17.39 (0.01) 17.29
RP magnitude 17.83 (0.01) 17.81
Pan g magnitude 17.37 (0.002)
Pan r magnitude 17.82 (0.003)
Pan i magnitude 18.18 (0.003)
Pan z magnitude 18.46 (0.007)
Pan y magnitude 18.63 (0.02)
E(B-V) 0.025

* 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.