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Name
  alf And  
AAVSO UID
000-BBB-194 (1619 observations)  
Constellation
Andromeda Sequence
J2000.0
00 08 23.26 +29 05 25.6  (2.09692 +29.09044) Search nearby
B1950.0 00 05 47.87 +28 48 52.0
Proper motion
RA: 137.46 mas/yDec: -163.44 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 111.732 -32.843
Other names

(Internal only)
21 And 21 And AAVSO 0003+28
ADS 94 ALS 16723 ASCC 647497
Alpheratz BD+28 4 GCRV 62
GSC 01735-03180 HD 358 HIP 677
HR 15 IRAS 00057+2848 LSPM J0008+2905
LTT 10039 NLTT 346 PPM 89441
Renson 50 SAO 73765 SBC7 4
SBC9 4 SRS 30001 Sirrah
TIC 427733653 TYC 1735-3180-1 WDS J00084+2905A
WDS J00084+2905Aa,Ab del Peg  
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Variability type
ACV
Spectral type B8IVpHgMn
Mag. range
2.07 V (0.010)TESS
Discoverer --
Epoch
28 Oct 2022 (HJD 2459880.52) Ephemeris
Outburst --
Period 2.3820 d
Rise/eclipse dur. --
Remarks
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1 GCVS Team SB (P = 96.6960d). VB A (B 11.2m, 80"). Epoch of Max U light is given. Hbeta index varies in the range of ~0.02m with P ~3h [K.D.Rakosch, AG Mitt N40, 178, 1976.]. Rapid rotation.
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References
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1 Ricker, G. R.; et al., 2014, Transiting Exoplanet Survey Satellite (TESS) 2014SPIE.9143E..20R
2 Perryman, M. A. C.; et al., 1997, The HIPPARCOS and TYCHO catalogues 1997HIP...C......0E
3 K.D.Rakosch, AG Mitt N40, 178, 1976. --
External Links
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Catalog Data
Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
2MASS J = 2.13H = 2.29K = 2.22J - K = -0.09
Images
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Supporting Documents
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1 Phase plot Otero, Sebastian Alberto 2024-04-24 20:35 UTC Phase plot with TESS-SPOC data.
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Revision History
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3 Otero, Sebastian Alberto 2024-04-24 20:35 UTC Type, period, epoch and amplitude from TESS-SPOC data. Mean magnitude derived from Hipparcos and GCPD data.
2 Admin, VSX 2010-01-05 04:43 UTC Update from the GCVS version of November 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.

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