All names: [HHD2009] SDSS J0833+0702, WD 0831+072, Gaia DR3 595815146249705472, [SGR2010] J0833+0702, SBC9 3362, SDSS J083354.85+070240.1, Gaia DR2 595815146249705472, 2MASS J08335484+0702400, SDSS J083354.84+070240.1, WIRED J083354.84+070240.1, SDSS J083354.85+070240.2, Gaia EDR3 595815146249705472, TIC 468967194
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Tremblay et al. 2011 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 33 54.84 (0.1) | 08 33 54.85 | 08 33 54.84 (0.2) | 08 33 54.84 | 08 33 54.86 (0.1) | 08 33 54.85 | 08 33 54.31 | 08 33 54.85 | |||||
| Declination | 07 02 39.97 (0.1) | 07 02 40.16 | 07 02 39.97 (0.1) | 07 02 40.09 | 07 02 40.24 (0.1) | 07 02 40.16 | 07 02 35.16 | 07 02 40.18 | |||||
| Spectral type | DA+M | DA | DA+M | DA+M | DA dM | DA+M | DA | ||||||
| Effective temperature | [K] | 15246.0 (560) | 16780.0 (630) | 9084.0 (62) | 8837.0 (64) | ||||||||
| log(g) | [cgs] | 7.87 (0.1) | 8.08 (0.1) | 7.86 (0.1) | 7.18 (0.1) | ||||||||
| Mass | [M☉] | 0.54 (0.07) | 0.66 (0.06) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.1778 | |||||||||||
| 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] | 2.68 (0.2) | 2.60 (0.2) | 2.68 (0.2) | |||||||||
| Distance | [pc] | 373.74 (23) | 383.95 (31) | 345.00 (63) | 373.73 (23) | ||||||||
| Composition | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -20.04668069 (0.2) | -20.20447604 (0.4) | -20.047 (0.2) | |||||||||
| Proper motion (declination) | [mas/yr] | -16.9409492 (0.1) | -16.59756154 (0.3) | -16.941 (0.1) | |||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 16.25 (0.008) | ||||||||||||
| H magnitude | 15.75 (0.01) | ||||||||||||
| K magnitude | 15.47 (0.01) | ||||||||||||
| u magnitude | 19.16 (0.02) | 19.15 | 19.17 (0.03) | 19.15 (0.03) | 19.15 | 19.15 (0.03) | |||||||
| g magnitude | 18.74 (0.008) | 18.73 | 18.75 (0.008) | 18.73 (0.02) | 18.73 | 18.73 (0.02) | |||||||
| r magnitude | 18.75 (0.01) | 18.75 | 18.75 (0.01) | 18.75 (0.02) | 18.75 | 18.75 (0.02) | |||||||
| i magnitude | 18.14 (0.009) | 18.15 | 18.13 (0.009) | 18.15 (0.02) | 18.15 | 18.13 (0.02) | |||||||
| z magnitude | 17.58 (0.02) | 17.60 | 17.59 (0.02) | 17.60 (0.02) | 17.60 | 17.58 (0.02) | |||||||
| G magnitude | 18.40 (0.03) | 18.41 | 18.40 (0.003) | ||||||||||
| BP magnitude | 18.79 (0.03) | 18.78 | |||||||||||
| RP magnitude | 17.72 (0.02) | 17.74 | |||||||||||
| Pan g magnitude | 18.76 (0.01) | ||||||||||||
| Pan r magnitude | 18.74 (0.005) | ||||||||||||
| Pan i magnitude | 18.15 (0.006) | ||||||||||||
| Pan z magnitude | 17.70 (0.008) | ||||||||||||
| Pan y magnitude | 17.43 (0.007) | ||||||||||||
| E(B-V) | 0.022 | ||||||||||||
* 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.