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
Spectra without link are available upon request
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.