All names: SDSS J164812.36+281123.2, Gaia DR3 1307661410981958656, GALEX J164812.3+281123, TIC 258193587, WD 1646+282, Gaia DR2 1307661410981958656, SDSS J164812.48+281123.3, 2MASS J16481235+2811232, SDSS J164812.36+281123.1, Gaia EDR3 1307661410981958656
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 48 12.36 (0.1) | 16 48 12.36 | 16 48 12.36 (0.2) | 16 48 12.36 | 16 48 12.36 (0.1) | 16 48 11.71 | ||
| Declination | 28 11 23.28 (0.2) | 28 11 23.12 | 28 11 23.27 (0.2) | 28 11 23.10 | 28 11 23.08 (0.2) | 28 11 17.16 | ||
| Spectral type | DA+M | DA+dMe | DA dM | |||||
| Effective temperature | [K] | 13432.0 (3300) | ||||||
| log(g) | [cgs] | 8.04 (0.8) | ||||||
| Mass | [M☉] | 0.63 (0.5) | ||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 1.53 (0.2) | 1.59 (0.3) | 1.53 (0.2) | ||||
| Distance | [pc] | 652.17 (92) | 627.80 (114) | 31.00 (27) | 652.19 (92) | |||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | 1.57248844 (0.2) | 0.899926239 (0.4) | 1.572 (0.2) | ||||
| Proper motion (declination) | [mas/yr] | 12.44100975 (0.2) | 12.91390463 (0.5) | 12.441 (0.2) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | WDMS | |||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | 16.59 (0.1) | |||||||
| H magnitude | 16.02 (0.2) | |||||||
| K magnitude | ||||||||
| u magnitude | 25.77 (0.6) | 25.56 | 25.59 (0.9) | 25.55 | ||||
| g magnitude | 22.29 (0.09) | 22.30 | 22.30 (0.09) | 22.29 | ||||
| r magnitude | 20.27 (0.03) | 20.25 | 20.27 (0.03) | 20.24 | ||||
| i magnitude | 19.18 (0.02) | 19.18 | 19.19 (0.02) | 19.17 | ||||
| z magnitude | 18.19 (0.03) | 18.22 | 18.22 (0.03) | 18.21 | ||||
| G magnitude | 19.40 (0.05) | 19.39 | 19.40 (0.01) | |||||
| BP magnitude | 20.26 (0.05) | 20.05 | ||||||
| RP magnitude | 18.38 (0.02) | 18.30 | ||||||
| Pan g magnitude | ||||||||
| Pan r magnitude | ||||||||
| Pan i magnitude | ||||||||
| Pan z magnitude | ||||||||
| Pan y magnitude | ||||||||
| E(B-V) | 0.027 | |||||||
* 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.