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Name
  HR Del  
AAVSO UID
000-BCM-231 (55748 observations)  
Constellation
Delphinus Sequence
J2000.0
20 42 20.35 +19 09 39.3  (310.58479 +19.16092) Search nearby
B1950.0 20 40 04.25 +18 58 51.5
Proper motion
RA: -2.086 +/- 0.165 mas/yDec: -9.219 +/- 0.142 mas/ySource: Gaia DR1
Galactic coord. 63.430 -13.972
Other names

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AAVSO 2037+18 Downes HR Del HIP 102190
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Variability type
NB
Spectral type pec(NOVA)
Mag. range
3.6 - 12.1 V
Discoverer G. E. D. Alcock
Epoch
13 Dec 1967 (HJD 2439838.00000) Ephemeris
Outburst 1967
Period 0.214165 d  (5.1400 h)
Rise/eclipse dur. --
Remarks
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1 GCVS Team Porb = 0.170920d. The brightness began to increase on JD ~2439653. Waves with maxima on JD2439752 (4.55m), 2439799 (4.64m), followed by a sharp main Max, flat max on JD2439981 (4.09m) and final decline. Radio source.
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References
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1 R.J. Strope, B.E. Schaefer, A.A. Henden, 2010, arXiv:1004.3698v1
[astro-ph.SR]
2010arXiv1004.3698S
2 R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version) 2005JAD....11....2D
3 R.A. Downes et al., 2001, PASP 113, 764 2001PASP..113..764D
4 Catalogue of Stellar Spectral Classifications (Skiff, 2005) 1967IAUC.2030....3S
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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 = 12.32H = 12.28K = 12.22J - K = 0.10
AllWISE W1 = 11.85W2 = 11.68W3 = 10.30W4 = 5.99W1 - W2 = 0.17W3 - W4 = 4.32
APASS-DR9 B = 12.38V = 12.40g' = 12.29r' = 12.44i' = 12.89B - V = -0.02
GALEX-DR5 FUV = 12.92NUV = 12.72FUV - NUV = 0.20
Images
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Supporting Documents
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Campaigns/Programs
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Revision History
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5 Admin, VSX 2010-04-28 20:57 UTC Update from [2010arXiv1004.3698S].
4 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
3 Admin, VSX 2009-09-22 20:51 UTC Added orbital period from Downes et al. [2001PASP..113..764D].
2 Admin, VSX 2007-03-23 15:52 UTC Discoverer added.
1 Admin, VSX 2005-12-17 20:33 UTC Initial database population.