V* V468 Per

All names: G 38-29, UBV M 53544, G38-29, SDSS J042017.25+361626.3, SDSS J042017.25+361626.4, V* V468 Per, NLTT 13016, UBV 4171, LAMOST J042017.26+361624.3, Gaia DR3 177368203568437120, 2MASS J04201723+3616272, PLX 954.01, USNO 119, EGGR 34, Gaia EDR3 177368203568437120, USNO-B1.0 1262-00071403, GEN# +9.80038029, WDJ042017.25+361627.27, CSI+36-04170, LSPM J0420+3616, Gaia DR2 177368203568437120, G 81-14, WD 0417+361, LAMOST J042017.19+361625.0, G 39-7, J0420+3616, WD 0417+36, LTT 11403, TIC 367648734

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Kilic et al. 2020 MWDD H Gaia DR2 Stilism Guo et al. 2015 Gianninas et al. 2011 Thompson et al. 2009 McGraw & Robinson 1975 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Research Corporation White Dwarf Catalog (McCook & Sion 1999)
Right ascension 04 20 17.28 (0.04) 04 20 17.28 (0.07) 04 20 17.28 04 20 17.25 (0.04) 04 20 17.28 04 20 17.98
Declination 36 16 22.70 (0.03) 36 16 22.85 (0.04) 36 16 22.70 36 16 27.27 (0.03) 36 16 22.85 36 16 39.00
Spectral type DA DA DA DA DA DA DA4.4 DAV DA5
Effective temperature [K] 11015.0 (144) 10934.0 (144) 11113.0 17583.0 (186) 11480.0 (174) 11160.0 11160.0 11021.0 (92) 11180.0
log(g) [cgs] 7.86 (0.01) 7.85 (0.01) 7.88 7.86 (0.04) 8.00 (0.05) 7.89 7.89 7.87 (0.01) 7.91
Mass [M] 0.527 (0.01) 0.521 (0.01) 0.533 0.54 (0.02) 0.6 (0.03) 0.527 (0.009)
log(Luminosity) [L]
Cooling age [Gyr] 0.3916
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] 16.05 (0.04) 16.01 (0.07) 16.05 16.05 (0.04) 16.01 (0.07) 13.00 (4)
Distance [pc] 62.30 (0.2) 62.48 (0.3) 59.00 62.30 62.30 (0.2) 62.48 (0.3) 76.92 (24)
Composition H H H
Proper motion (right ascension) [mas/yr] 24.27375694 (0.06) 23.97295928 (0.2) 24.274 (0.06) 23.97295928
Proper motion (declination) [mas/yr] -285.1728675 (0.04) -285.1507529 (0.1) -285.173 (0.04) -285.1507529
Variability VAR VAR VAR VAR
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.79
V magnitude 15.60 15.60 15.59
R magnitude 15.50
I magnitude
J magnitude 15.71 (0.07)
H magnitude 15.57 (0.1)
K magnitude 15.78 (0.2)
u magnitude 16.09 (0.006) 16.09 (0.006)
g magnitude 15.62 (0.004) 15.62 (0.004)
r magnitude 15.77 (0.005) 15.77 (0.005)
i magnitude 15.94 (0.005) 15.94 (0.005)
z magnitude 16.17 (0.008) 16.17 (0.008)
G magnitude 15.67 (0.007) 15.68 15.67 15.67 (0.003) 15.68
BP magnitude 15.69 (0.007) 15.69 15.69
RP magnitude 15.64 (0.005) 15.64 15.64
Pan g magnitude 15.57 (0.03)
Pan r magnitude 15.76 (0.007)
Pan i magnitude 15.96 (0.005)
Pan z magnitude 16.15 (0.004)
Pan y magnitude 16.28 (0.008)
E(B-V) 0.001
Period #1 [s] 413.3 923.9
Amplitude #1 [mma] 3.1
Period #2 [s] 432.4 1021.9
Amplitude #2 [mma] 3.6
Period #3 [s] 544.9
Amplitude #3 [mma] 6.1
Period #4 [s] 547.0
Amplitude #4 [mma] 7
Period #5 [s] 548.9
Amplitude #5 [mma] 4.8
Period #6 [s] 706.0
Amplitude #6 [mma] 18.4
Period #7 [s] 709.2
Amplitude #7 [mma] 6.0
Period #8 [s] 840.4
Amplitude #8 [mma] 5.2
Period #9 [s] 900.0
Amplitude #9 [mma] 10.6
Period #10 [s] 922.7
Amplitude #10 [mma] 5.9
Period #11 [s] 945.4
Amplitude #11 [mma] 12.3
Period #12 [s] 962.1
Amplitude #12 [mma] 8.1
Period #13 [s] 963.6
Amplitude #13 [mma] 4.6
Period #14 [s] 980.1
Amplitude #14 [mma] 11.4
Period #15 [s] 989.7
Amplitude #15 [mma] 10.0
Period #16 [s] 1002.2
Amplitude #16 [mma] 7.1
Period #17 [s] 1016.2
Amplitude #17 [mma] 5.8
Period #18 [s] 1081.8
Amplitude #18 [mma] 5.0
Period #19 [s] 1086.8
Amplitude #19 [mma] 3.9
Period #20 [s] 1089.4
Amplitude #20 [mma] 5.2

* Constant surface field

Special notes:

Spectra

Controls

Normalize at:
Normalize by mean flux

Range:

x: to
y: to

Spectra available:

Spectra without link are available upon request

Absorption lines

Photometric filters

BVRI
ugriz

Photometric fit





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.