All names: NVSS J222941-205025, uvby98 610160287, GALEX J222938.3-205011, 2E 2226.9-2105, GALEX J222938.3-205016, GALEX J222938.7-205011, GALEX J222938.4-205015, PLX 5437.00, CSI-21-22270, NAME HELICAL NEB, GLEAM J222942-205017, GALEX J222938.4-205011, GJ 9785, [LFO93] 2226-21, GALEX J222938.5-205013, WD 2226-210, ESO 602-22, GCRV 14134, IRAS 22267-2102, PN VV' 563, 2XMM J222938.5-205014, NAME Helix Nebula, IRAS X2226-210, WEB 19878, GALEX J222938.5-205009, GALEX J222938.6-205011, GALEX J222938.4-205012, NGC 7293, GALEX J222938.5-205011, GSC2 S32303301945, PN G036.1-57.1, GALEX J222938.4-205014, GALEX J222938.6-205010, PN ARO 17, GALEX J222938.4-205010, GALEX J222938.5-205014, Gaia DR3 6628874205642084224, Gaia DR2 6628874205642084224, GALEX J222938.6-205009, TIC 69813909, GALEX J222938.5-205012, PKS 2226-211, 2MASS J22293854-2050136, 2E 4615, PK 036-57, [HBC92] 222654.7-210537, USNO 271, [RHK93] 18755, 2RXP J222938.8-205015, PLX 5437, PHL 287, GALEX J222938.4-205013, PKS J2229-2050, Gaia EDR3 6628874205642084224, GALEX J222938.3-205010, PK 036-57 1, WISH B2226.9-2105, PN VV 275
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 29 38.59 (0.04) | 22 29 38.59 (0.07) | 22 29 38.55 (0.04) | 22 29 38.76 | ||||
| Declination | -20 50 13.80 (0.03) | -20 50 13.80 (0.06) | -20 50 13.75 (0.03) | -20 50 06.72 | ||||
| Spectral type | DA | DAO.5 | DAO | |||||
| Effective temperature | [K] | 94640.0 (3349) | ||||||
| log(g) | [cgs] | 7.62 (0.1) | ||||||
| Mass | [M☉] | 0.65 (0.03) | ||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| 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] | 5.01 (0.04) | 4.98 (0.08) | 5.01 (0.04) | 4.70 (0.7) | |||
| Distance | [pc] | 199.51 (2) | 200.97 (3) | 152.00 | 199.51 (2) | 212.77 (32) | ||
| Composition | H | |||||||
| Proper motion (right ascension) | [mas/yr] | 38.78960372 (0.05) | 38.86872906 (0.2) | 38.79 (0.05) | ||||
| Proper motion (declination) | [mas/yr] | -3.346567647 (0.04) | -3.418752638 (0.1) | -3.347 (0.04) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | 13.16 | |||||||
| V magnitude | 13.52 | |||||||
| R magnitude | 13.69 | |||||||
| I magnitude | 13.90 | |||||||
| J magnitude | 14.33 (0.02) | |||||||
| H magnitude | 14.49 (0.04) | |||||||
| K magnitude | 14.55 (0.08) | |||||||
| u magnitude | ||||||||
| g magnitude | ||||||||
| r magnitude | ||||||||
| i magnitude | ||||||||
| z magnitude | ||||||||
| G magnitude | 13.46 (0.003) | 13.48 | 13.46 (0.003) | |||||
| BP magnitude | 13.26 (0.003) | 13.22 | ||||||
| RP magnitude | 13.85 (0.0009) | 13.85 | ||||||
| Pan g magnitude | 13.36 | |||||||
| Pan r magnitude | 13.82 (0.01) | |||||||
| Pan i magnitude | 14.21 (0.004) | |||||||
| Pan z magnitude | 14.51 (0.0009) | |||||||
| Pan y magnitude | 14.70 (0.005) | |||||||
| E(B-V) | 0.013 | |||||||
* 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.