All names: Gaia DR2 1558322303741820928, SDSS J133940.98+484727.9, V* V355 UMa, [VV2010] J133941.1+484727, LAMOST J133941.12+484727.4, SDSS J133941.13+484727.4, [VV2006] J133941.1+484727, SDSS J133941.11+484727.5, USNO-B1.0 1387-00234342, CRTS J133941.1+484728, SDSS J133941.12+484727.4, Gaia EDR3 1558322303741820928, SDSS J133941.12+484727.5, Gaia DR3 1558322303741820928
| Parameter | Unit | Gaia EDR3 | Stilism | Guo et al. 2015 | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|
| Right ascension | 13 39 41.08 (0.05) | 13 39 41.08 | 13 39 41.14 (0.05) | ||||
| Declination | 48 47 27.58 (0.05) | 48 47 27.58 | 48 47 27.47 (0.05) | ||||
| Spectral type | dwarf_nova | DC: | DC | CV | |||
| Effective temperature | [K] | 9829.0 (154) | |||||
| log(g) | [cgs] | 7.33 (0.03) | |||||
| Mass | [M☉] | 0.28 (0.01) | |||||
| log(Luminosity) | [L☉] | ||||||
| Cooling age | [Gyr] | ||||||
| log(H/He) | |||||||
| log(C/He) | |||||||
| log(Ca/He) | |||||||
| log(Ca/H) | |||||||
| Parallax | [mas] | 6.62 (0.06) | 6.62 | 6.62 (0.06) | |||
| Distance | [pc] | 151.08 (1) | 151.08 | 151.08 (1) | |||
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | -35.08 (0.06) | -35.08 (0.06) | ||||
| Proper motion (declination) | [mas/yr] | 7.093 (0.06) | 7.093 (0.06) | ||||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | |||||||
| B magnitude | 17.20 | ||||||
| V magnitude | 18.01 | ||||||
| R magnitude | 17.30 | ||||||
| I magnitude | |||||||
| J magnitude | |||||||
| H magnitude | |||||||
| K magnitude | |||||||
| u magnitude | 17.85 (0.01) | ||||||
| g magnitude | 17.67 (0.005) | ||||||
| r magnitude | 17.77 (0.006) | ||||||
| i magnitude | 17.92 (0.008) | ||||||
| z magnitude | 18.04 (0.03) | ||||||
| G magnitude | 17.37 (0.004) | 17.37 | 17.37 (0.004) | ||||
| BP magnitude | 17.40 (0.009) | ||||||
| RP magnitude | 17.32 (0.01) | ||||||
| Pan g magnitude | |||||||
| Pan r magnitude | |||||||
| Pan i magnitude | |||||||
| Pan z magnitude | |||||||
| Pan y magnitude | |||||||
| E(B-V) | 0.012 | ||||||
* 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.