All names: SDSS J090903.57+370207.0, WD 0905+372, SDSS J090903.50+370207.0, 2MASS J09090352+3702067, SDSS J090903.57+370206.9, WIRED J090903.56+370207.0, Gaia EDR3 715844024587436800, [HHD2009] SDSS J0909+3702, Gaia DR2 715844024585997568, SDSS J090903.56+370207.0, TIC 16161703, Gaia DR3 715844024587436800
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 09 03.59 (2) | 09 09 03.57 | 09 09 03.59 (3) | 09 09 03.56 | 09 09 03.59 (2) | 09 09 03.57 | 09 09 03.34 | 09 09 03.57 | |||
| Declination | 37 02 07.21 (2) | 37 02 06.96 | 37 02 07.19 (3) | 37 02 07.01 | 37 02 07.21 (2) | 37 02 07.05 | 37 02 00.60 | 37 02 07.04 | |||
| Spectral type | DA+M | DA+dM | DA+M | DA d | DA+M | ||||||
| Effective temperature | [K] | 20331.0 (1230) | 6303.0 (8) | 6302.0 (6) | |||||||
| log(g) | [cgs] | 7.98 (0.2) | 6.72 (0.4) | 6.70 (0.2) | |||||||
| Mass | [M☉] | 0.61 (0.1) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | ||||||||||
| Distance | [pc] | 1356.00 (588) | |||||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 12.0 (3) | 11.7 | ||||||||
| Proper motion (declination) | [mas/yr] | 7.0 (3) | 5.9 | ||||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 17.32 (0.3) | ||||||||||
| H magnitude | 16.20 (0.2) | ||||||||||
| K magnitude | |||||||||||
| u magnitude | 19.58 (0.03) | 19.57 | 19.57 (0.03) | 19.57 (0.04) | 19.57 | 19.54 (0.04) | |||||
| g magnitude | 19.30 (0.01) | 19.36 | 19.33 (0.01) | 19.36 (0.02) | 19.36 | 19.34 (0.02) | |||||
| r magnitude | 19.11 (0.01) | 19.14 | 19.12 (0.01) | 19.14 (0.02) | 19.14 | 19.13 (0.02) | |||||
| i magnitude | 18.44 (0.01) | 18.47 | 18.45 (0.01) | 18.47 (0.02) | 18.47 | 18.45 (0.02) | |||||
| z magnitude | 17.96 (0.02) | 18.02 | 17.99 (0.02) | 18.02 (0.03) | 18.02 | 18.00 (0.02) | |||||
| G magnitude | 19.20 (0.04) | 19.08 | 19.20 (0.02) | ||||||||
| BP magnitude | 19.26 (0.04) | 19.24 | |||||||||
| RP magnitude | 18.03 (0.01) | 18.06 | |||||||||
| Pan g magnitude | 19.31 (0.009) | ||||||||||
| Pan r magnitude | 19.11 (0.006) | ||||||||||
| Pan i magnitude | 18.45 (0.005) | ||||||||||
| Pan z magnitude | 18.07 (0.008) | ||||||||||
| Pan y magnitude | 17.86 (0.01) | ||||||||||
| E(B-V) | 0.023 | ||||||||||
* 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.