1990JAVSO..19...28I

Query : 1990JAVSO..19...28I

1990JAVSO..19...28I - J. Am. Assoc. Variable star obs., 19, 28-31 (1990/June-0)

High and low stages of T CrB.

IIJIMA T.

Abstract (from CDS):

In the period from 1981 to 1987, probably except for some months in 1982, T CrB showed the usual spectrum of an M-type giant with prominent emission lines fo H I, He I, etc. The emission of HE II 4686 was temporarily observed. All emission lines weakened or disappeared in the early half of 1988. At the same time the luminosity slightly decreased (B=11.8). This stage continued until March 1990. Then in April the emissions of H I again became prominent and a weak emission of HE II 4686 was detected. The intensity of H I emissions has been largely varying in the period from April to July 1990, which might have been related to a pulsation of the cool component. It seems that the mass transfer in the binary system ceases in a certain unknown condition.

Abstract Copyright: ∼

Journal keyword(s): T CrB

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 V* T CrB Sy* 15 59 30.1622265912 +25 55 12.613382940   11.516 10.247 9.70   M3IIIe_sh 810 0

Query : 1990JAVSO..19...28I

Basic data :
V* T CrB -- Symbiotic Star
Other object types: otypes_help 		* (HD,AG,...), ** (**,CCDM,...), X (2022MNRAS,PBC,...), V* (1SWASP,V*,...), SB* (SBC7,SBC9), MIR (WISEA,WISE), Sy* (1999A&AS), No* (NOVA), LP* (2022yCat), LP? (2018A&A), Em* (EM*), NIR (2MASS), IR (IRAS)
ICRS coord. (ep=J2000) : 		15 59 30.1622265912 +25 55 12.613382940 (Optical) [ 0.0126 0.0203 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		15 57 24.5008877861 +26 03 38.867272281 [ 0.0126 0.0203 90 ]
Gal coord. (ep=J2000) : 		042.3738159613886 +48.1646811970452 [ 0.0126 0.0203 90 ]
Proper motions mas/yr : 		-4.461 12.016 [0.016 0.028 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) -27.79 [0.13] / z(~) -0.000093 [0.000000] / cz -27.79 [0.13]
   A 2004A&A...424..727P
Parallaxes (mas): 		1.092 [0.0275] A 2020yCat.1350....0G
Spectral type: 		M3IIIe_sh C 1949ApJ...109...81S
Fluxes (7) :
B 11.516 [0.071] D 2000A&A...355L..27H
V 10.247 [0.031] D 2000A&A...355L..27H
R 9.70 [0.02] D 2012yCat.1322....0Z
G 8.724516 [0.005141] C 2020yCat.1350....0G
J 5.996 [0.020] C 2003yCat.2246....0C
H 5.151 [0.042] C 2003yCat.2246....0C
K 4.809 [0.016] C 2003yCat.2246....0C
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Identifiers (42) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

HD 143454 HIC 78322 SAO 84129 V* T CrB
** JEF 2 HIP 78322 SBC7 558 WDS J15595+2555AB
AG+26 1536 HR 5958 SBC9 877 WEB 13243
BD+26 2765 IDS 15553+2612 AB SRGA J155929.5+255512 WISEA J155930.14+255512.6
CCDM J15595+2555AB IRAS 15574+2603 1SWASP J155930.15+255512.5 WISE J155930.15+255512.7
DO 15377 2MASS J15593015+2555126 SWIFT J1559.5+2553 AAVSO 1555+26
EM* MWC 413 NAME-IAU Blaze Star SWIFT J1559.6+2554 Gaia DR3 1220110705972528512
GC 21491 NOVA CrB 1866 TIC 462607643 Gaia DR1 1220110701675511040
GCRV 9203 NOVA CrB 1946 TYC 2037-1144-1 Gaia DR2 1220110705972528512
GEN# +1.00143454 PBC J1559.4+2556 UCAC4 580-052260
GSC 02037-01144 PPM 104498 uvby98 100143454

References (810 between 1850 and 2026) (Total 810)
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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Collections of Measurements Description of Measurements

Velocities : 7    Distance : 3    Var : 4    Plx : 4    PM : 6    SpT : 17   

   

Observing logs
ISO : 2    IUE : 51   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : V* T CrB

Link by name to the catalogue in VizieR :

HD 143454 AG+26 1536 BD+26 2765 CCDM J15595+2555AB DO 15377
GSC 02037-01144 HIC 78322 HIP 78322 HR 5958 IRAS 15574+2603
2MASS J15593015+2555126 PPM 104498 SAO 84129 TYC 2037-1144-1 UCAC4 580-052260
uvby98 100143454 V* T CrB WDS J15595+2555AB WISEA J155930.14+255512.6 WISE J155930.15+255512.7
Gaia DR3 1220110705972528512 Gaia DR1 1220110701675511040 Gaia DR2 1220110705972528512

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