Abstract
The North America-Pelican Nebulae are noted for a large number of active stars with Ha in emission. During the last two decades 73 flare stars were discovered in this aggregate. B19 is one of the most active and also the brightest. It is positioned several degrees away from the nebulosities (RA=20h 41m00s; Dec=+41°11’; 1950) and is seen projected against the Big Rift of the Milky Way. Figure 1 identifies B19=V1589 Cyg on Palomar Sky Survey blue and red prints, respectively. We note the presence of an extremely red star 20 arcsecs north of B19. It is considerably weaker in red and not visible at all in blue.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Melikian, N.D., 1983, IBVS No. 2352.
Pettersen, B.R., Tsvetkov, M.K., Hawley, S.L., Coleman, L.A., Amirkhanian, A.S., 1987, Astrofizika, in press.
Tsvetkov, M.K., Erastova, L.K., Tsvetkova, K.P., 1975, IBVS No. 1002.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1988 Kluwer Academic Publishers
About this paper
Cite this paper
Tsvetkov, M.K., Pettersen, B.R., Hawley, S.L. (1988). B19 — A Flare Star in Front of the NGC 7000 Aggregate. In: Havnes, O., Pettersen, B.R., Schmitt, J.H.M.M., Solheim, J.E. (eds) Activity in Cool Star Envelopes. Astrophysics and Space Science Library, vol 143. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-2951-7_12
Download citation
DOI: https://doi.org/10.1007/978-94-009-2951-7_12
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-7827-6
Online ISBN: 978-94-009-2951-7
eBook Packages: Springer Book Archive