SDSS J110731.38+485523.0

All names: PM J11075+4855, SDSS J110731.38+485523.0, Gaia DR3 831946229073235200, USNO-B1.0 1389-00214446, Gaia DR2 831946229073235200, LSR J1107+4855, J1107+4855, WD 1104+491, LSPM J1107+4855, Gaia EDR3 831946229073235200, 1104+491, WDJ110731.54+485523.22, 11075+4855, SDSS J110731.37+485523.0

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Caron et al. 2023 Leggett et al. 2018 MWDD H MWDD HE Gaia DR2 Stilism Limoges et al. 2015 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 11 07 30.36 (0.1) 11 07 30.39 (0.1) 11 07 30.36 11 07 31.54 (0.1) 11 07 30.39 11 07 30.70
Declination 48 55 21.99 (0.2) 48 55 22.02 (0.3) 48 55 21.99 48 55 23.21 (0.2) 48 55 22.02 48 55 21.72
Spectral type DC DC DC11.0 DC DC DC DA: DC DC
Effective temperature [K] 4558.0 (33) 4549.0 (49) 4685.0 (75) 4636.0 4328.0 4460.0 (139) 4560.0 (71)
log(g) [cgs] 7.91 (0.02) 7.89 (0.03) 7.96 (0.04) 7.95 7.72 8.00 (0) 7.89 (0.04)
Mass [M] 0.522 (0.01) 0.515 (0.02) 0.554 (0.04) 0.55 0.412 0.58 (0.1) 0.513 (0.03)
log(Luminosity) [L] -4.25
Cooling age [Gyr] 6.7300 6.5610 (0.5) 6.6810 4.7970
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] 20.93 (0.2) 20.80 (0.3) 20.30 (0.4) 20.80 (0.3) 20.93 20.93 (0.2) 20.80 (0.3)
Distance [pc] 47.78 (0.4) 48.08 (0.7) 49.26 (1) 48.07 (0.7) 47.30 (8) 47.78 47.78 (0.4) 48.07 (0.7)
Composition H H H
Proper motion (right ascension) [mas/yr] -730.2421607 (0.1) -730.1783979 (0.2) -730.242 (0.1) -730.1783979
Proper motion (declination) [mas/yr] -76.79093374 (0.2) -76.88595016 (0.5) -76.791 (0.2) -76.88595016
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 20.80
V magnitude
R magnitude 18.70
I magnitude
J magnitude 17.05 (0.05) 17.05 (0.05)
H magnitude 16.95 (0.07) 16.95 (0.07)
K magnitude 16.86 (0.07) 16.86 (0.07)
u magnitude 21.58 (0.1) 21.58 (0.1) 21.58 (0.1) 19.47
g magnitude 19.46 (0.01) 19.46 (0.01) 19.47
r magnitude 18.56 (0.008) 18.56 (0.008)
i magnitude 18.21 (0.009) 18.21 (0.009)
z magnitude 18.07 (0.02) 18.07 (0.02)
G magnitude 18.57 (0.03) 18.61 18.57 18.57 (0.003) 18.61
BP magnitude 19.15 (0.03) 19.11 19.11
RP magnitude 17.84 (0.01) 17.84 17.84
Pan g magnitude 19.30 (0.01) 19.30 (0.02)
Pan r magnitude 18.53 (0.004) 18.53 (0.01)
Pan i magnitude 18.22 (0.004) 18.21 (0.008)
Pan z magnitude 18.08 (0.009) 18.10 (0.02)
Pan y magnitude 18.07 (0.01) 18.07 (0.02)
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.