2014IBVS.6111....1G

Query : 2014IBVS.6111....1G

2014IBVS.6111....1G - IAU Inform. Bull. Var. Stars, 6111, 1 (2014/June-0)

The 2014 Eclipse of EE Cep: Announcement for a Third International Observational Campaign.

GALAN C., WYCHUDZKI P., MIKOLAJEWSKI M., TOMOV T. and DIMITROV D.

Abstract (from CDS):

EE Cep is a unique system in which a Be star is eclipsed by a dark dusty disk, making this star similar to the famous epsilon Aur in many respects. The depth and the duration of the EE Cep eclipses change to a large extent. The last two eclipses were observed in the framework of extensive international campaigns. The joint analysis of these campaigns data and historical photometry, enabled us to propose a model of this system, which implies a disk precession with a period approximately 11-12 times larger than the orbital period. This model predicts that the forthcoming eclipse should be among the deepest observed, reaching about 2 mag. The next eclipse approaches - the photometric minimum should occur around August 23, 2014. Here we would like to announce a new, third international campaign with purpose to verify the disk precession model and to put more constraints on the physical parameters of this system.

Abstract Copyright: ∼

Journal keyword(s): eclipsing binary, observational campaign, photometry, spectroscopy

Simbad objects: 1

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Number of rows : 1

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	BD+55 2693	Be*	22 09 22.7543431920	+55 45 24.256674360	10.88	11.1	10.9			B5:nev	88	0

Query : 2014IBVS.6111....1G

Basic data :

BD+55 2693 -- Be Star

EB* (), * (BD,ALS,...), Em* (EM*,HBHA,...), V* (V*,AAVSO), Be* (1982IAUS), NIR (2MASS), Opt (LAMOST)

22 09 22.7543431920 +55 45 24.256674360 (Optical) [ 0.0150 0.0150 90 ] A 2020yCat.1350....0G

22 07 34.6768346998 +55 30 38.675230973 [ 0.0150 0.0150 90 ]

101.4897777328560 -00.2170773345234 [ 0.0150 0.0150 90 ]

-2.530 -2.532 [0.019 0.018 90] A 2020yCat.1350....0G

0.4382 [0.0175] A 2020yCat.1350....0G

B5:nev D ~

U 10.88 [~] D 1982IAUS...98..261J

B 11.1 [~] E ~

V 10.9 [~] E ~

G 10.638212 [0.002806] C 2020yCat.1350....0G

J 9.601 [0.029] C 2003yCat.2246....0C

H 9.219 [0.030] C 2003yCat.2246....0C

K 8.555 [0.023] C 2003yCat.2246....0C

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`BD+55 2693`	`LAMOST J220922.75+554524.2`	`UCAC3 292-178067`	`Gaia DR3 2197941958898810240`
`ALS 12159`	`LS III +55 24`	*`V EE Cep`**	`Gaia DR1 2197941954587810688`
*`EM CDS 1305`**	`2MASS J22092274+5545242`	`[BBB73] 74`	`Gaia DR2 2197941958898810240`
`GEN# +0.05502693`	`TIC 329020872`	`[JE82] 1110`
`GSC 03973-00715`	`TYC 3973-715-1`	`[KW97] 61-42`
`HBHA 5704-39`	`UBV M 3940`	`AAVSO 2205+55`

References (88 between 1850 and 2026) (Total 88)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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`BD+55 2693`	`ALS 12159`	`GSC 03973-00715`	`LS III +55 24`	`2MASS J22092274+5545242`
`TYC 3973-715-1`	`UCAC3 292-178067`	*`V EE Cep`**	`Gaia DR3 2197941958898810240`	`Gaia DR1 2197941954587810688`
`Gaia DR2 2197941958898810240`

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