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Name
  ET And  
AAVSO UID
000-BDC-834 (6 observations)  
Constellation
Andromeda Sequence
J2000.0
23 17 56.01 +45 29 20.1  (349.48337 +45.48892) Search nearby
B1950.0 23 15 34.86 +45 12 56.2
Proper motion
RA: 24.370 +/- 0.026 mas/yDec: -10.940 +/- 0.026 mas/ySource: Gaia DR1
Galactic coord. 106.248 -14.332
Other names

(Internal only)
ASASSN-V J231756.08+452920.7 BD+44 4373 HD 219749
HIP 115036 HR 8861 SAO 52876
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Variability type
ACV
Spectral type B9pSi
Mag. range
6.48 (0.03) V
Discoverer --
Epoch
--
Outburst --
Period 1.618875 d
Rise/eclipse dur. --
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 GCVS Team Delta(B) = 0.035m, Delta(U) = 0.07m. The Table gives the epoch of Max light. Observations may be represented by the periods 0.723d and 1.61553d [K.D.Rakosch, W.Fiedler, AsAp Suppl 31, 83, 1978., W.Schoeneich, G.Hildebrandt, W.Furtig, AN 297, 39, 1975.]. According to [C.Sezer, IBVS N1384, 1978.], in June - December 1977 Min = 2443337.4725 + 0.49925d*E, other periods are not satisfied by observations. According to [C.Blanco, F.A.Catalano, G.Strazzulla, AsAp Suppl 39, 127, 1980.], Max(U) = 2439751.28 + 0.617135d*E (1967 - 1971). SB, Max(Vr) = JD2443718.0 + 48.304d*E [M.Ouhrabka, J.Grygar, IBVS N1600, 1979.]. Photometric periods could not be found in radial velocities.
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References
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1 K.D.Rakosch, W.Fiedler, AsAp Suppl 31, 83, 1978. 1978A&AS...31...83R
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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 = 6.43H = 6.51K = 6.49J - K = -0.06
AllWISE W1 = 6.47W2 = 6.46W3 = 6.55W4 = 6.41W1 - W2 = 0.01W3 - W4 = 0.14
APASS-DR9 B = 7.15V = 6.87g' = 7.09r' = 6.92i' = 6.76B - V = 0.28
Images
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Supporting Documents
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Revision History
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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.