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Name
  XX Per  
AAVSO UID
000-BBD-409 (4681 observations)  
Constellation
Perseus Sequence
J2000.0
02 03 09.36 +55 13 56.6  (30.78900 +55.23239) Search nearby
B1950.0 01 59 47.20 +54 59 31.9
Proper motion
RA: -1.213 +/- 0.039 mas/yDec: -1.543 +/- 0.036 mas/ySource: Gaia DR1
Galactic coord. 133.103 -6.217
Other names

(Internal only)
2MASS J02030935+5513566 AAVSO 0156+54 AN 19.1917
ASASSN-V J020309.54+551356.9 BD+54 444 BLL 4 A
CCDM J02032+5512A DO 25196 GSC 03689-01837
HD 12401 HIP 9582 HV 3414
IRAS 01597+5459 IRC +50052 PPM 27055
RAFGL 4153S SAO 22875 TIC 445566490
TYC 3689-1837-1 WDS J02032+5514A  
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Variability type
SRC
Spectral type M4Ib+B
Mag. range
7.6 - 9.0 V
Discoverer Carl Hartwig (1917)
Epoch
--
Outburst --
Period 415 d
Rise/eclipse dur. --
Remarks
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1 GCVS Team VB A (B 9.7m vis, 21", 176deg, 1909). Mean brightness var, P = 4100d.
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References
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1 Kochanek, C. S.; et al., 2017, The All-Sky Automated Survey for Supernovae
(ASAS-SN) Light Curve Server v1.0
2017PASP..129j4502K
2 Perryman, M. A. C.; et al., 1997, The HIPPARCOS and TYCHO catalogues 1997HIP...C......0E
3 R.Stothers, K.C.Leung, AsAp 10, 290, 1971. 1971A&A....10..290S
4 Hartwig, E.; Muller, G., 1921, Benennung von neu entdeckten veraenderlichen
Sternen
1921AN....212..353.
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 = 3.44H = 2.48K = 1.97J - K = 1.47
AllWISE W3 = -0.34W4 = -1.23W3 - W4 = 0.88
APASS-DR9 B = 10.41V = 8.49g' = 9.38r' = 7.60B - V = 1.92
Images
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Supporting Documents
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Campaigns/Programs
 SNEWS Campaign
Revision History
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4 Fernig, Leo 2023-03-29 20:21 UTC Discoverer updated from 1921AN....212..353. page 363.
3 Otero, Sebastian Alberto 2021-02-19 19:47 UTC Range from Hipparcos, Tycho, AAVSO and ASAS-SN data.
2 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.