All names: SDSS J093011.64+095319.5, Gaia DR2 589114657965854080, WISEA J093011.63+095319.6, LAMOST J093011.64+095319.5, Gaia EDR3 589114657965854080, 2MASS J09301160+0953198, WISE J093011.64+095319.8, SDSS J093011.64+095319.6, TIC 405948406, GALEX J093011.6+095320
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Guo et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 30 11.65 (1) | 09 30 11.64 | 09 30 11.65 (1) | 09 30 11.64 | 09 30 11.64 | ||||
| Declination | 09 53 19.77 (0.8) | 09 53 19.57 | 09 53 19.79 (0.6) | 09 53 19.50 | 09 53 19.57 | ||||
| Spectral type | DA+M | DA+M | DA+M | ||||||
| Effective temperature | [K] | 9401.0 (11) | |||||||
| log(g) | [cgs] | 7.86 (0.06) | |||||||
| Mass | [M☉] | 0.52 (0.05) | |||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | ||||||||
| Distance | [pc] | 145.00 (2) | |||||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | ||||||||
| Proper motion (declination) | [mas/yr] | ||||||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | ||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 15.16 (0.05) | ||||||||
| H magnitude | 14.60 (0.05) | ||||||||
| K magnitude | 14.57 (0.09) | ||||||||
| u magnitude | 18.53 (0.02) | 18.88 | 18.53 (0.01) | ||||||
| g magnitude | 17.93 (0.006) | 18.31 | 17.93 (0.006) | ||||||
| r magnitude | 17.64 (0.006) | 18.00 | 17.64 (0.006) | ||||||
| i magnitude | 16.97 (0.005) | 17.36 | 16.96 (0.005) | ||||||
| z magnitude | 16.39 (0.008) | 16.82 | 16.39 (0.008) | ||||||
| G magnitude | 18.14 (0.03) | 18.11 | |||||||
| BP magnitude | 18.00 (0.03) | 17.91 | |||||||
| RP magnitude | 16.53 (0.01) | 16.57 | |||||||
| Pan g magnitude | 17.97 (0.008) | ||||||||
| Pan r magnitude | 17.74 (0.008) | ||||||||
| Pan i magnitude | 17.07 (0.01) | ||||||||
| Pan z magnitude | 16.55 (0.01) | ||||||||
| Pan y magnitude | 16.34 (0.007) | ||||||||
| E(B-V) | 0.008 | ||||||||
* 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.