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Name
  OP Lyr  
AAVSO UID
000-BCW-330 (479 observations)  
Constellation
Lyra Sequence
J2000.0
18 32 53.73 +43 01 03.5  (278.22388 +43.01764) Search nearby
B1950.0 18 31 21.71 +42 58 43.2
Proper motion
RA: -1.9 +/- 2.7 mas/yDec: 4.3 +/- 2.8 mas/ySource: UCAC4
Galactic coord. 71.458 +21.326
Other names

(Internal only)
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AAVSO 1829+42 NSVS J1832539+430101 ROTSE1 J183253.85+430101.5
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Variability type
M
Spectral type M7:
Mag. range
11.5 - 17.6 V
Discoverer Roger Weber
Epoch
18 Nov 1997 (HJD 2450771.0) Ephemeris
Outburst --
Period 298.4 d
Rise/eclipse dur. 37%  (110 d)
Remarks
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1 2016JAVSO..44..156K B-V= 1.52; V-R= 2.21
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References
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1 Karlsson, T.; Bengtsson, H.; Wikander, T.; et al., 2016, 50 forgotten Miras 2016JAVSO..44..156K
2 P.R. Wozniak, S.J. Williams, W.T. Vestrand, V. Gupta, AJ 128, 2965, 2004 2004AJ....128.2965W
3 C.Akerlof et al., AJ 119, 1901, 2000. 2000AJ....119.1901A
4 Catalogue of Stellar Spectral Classifications (Skiff, 2005) 1985IBVS.2657....1S
5 IBVS #2657 1985IBVS.2657....1S
6 H.Gessner, MVS 9, H.3, 78, 1981. --
7 R.Weber, IBVS N34, 1963. 1963IBVS...34....1W
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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 = 7.89H = 7.05K = 6.43J - K = 1.47
AllWISE W1 = 5.29W2 = 4.68W3 = 3.12W4 = 2.18W1 - W2 = 0.61W3 - W4 = 0.94
APASS-DR9 B = 17.30V = 15.91g' = 17.00r' = 14.53i' = 11.74B - V = 1.40
Images
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Supporting Documents
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Revision History
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4 Karlsson, Thomas 2017-03-10 22:16 UTC Elements, range, B-V and V-R from 2016JAVSO..44..156K. Discoverer from IBVS, 34, 1963
3 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
2 Bedient, James 2006-12-07 16:36 UTC Spectral type from IBVS #2657
1 Admin, VSX 2005-12-17 20:33 UTC Initial database population.