V777 Sagittarii

V777 Sagittarii (Sgr)

Little data are available on this 2.6 year eclipsing binary star system. This would make an excellent project for an observer in the Southern Hemisphere

V777 Sagittarii DATA

V777 Sgr
HD161387
SAO 185724
Name: ?

R.A. (1985) 17h 43m 18.8s* (2000) 17h 46m 25.4s
DEC. (1985) -26d 10' 55" * (2000) -26d 12' 01"

 

COMP	A	B
SPECT.	K5Ib+A	A
DIAM	?	?
MASS	?	?
LUM.	?	?
ABS.	?	?
MAG	?	?
TEMP.	?	?

I	?		V - I	?
R	?		R - I	?
V	10.42 - 10.7		B - V	?
B	?		U - B	?
U	?

Distance: ? light years

Epoch: JD 2,429,411.7
Period: 936.07 days 2.6 years

Secondary Eclipse at Phase: ?

Ingress/Egress: 2.0 days
Totality: 52 days

Next Eclipse:
2,453,749.52 - 13 January 2006
2,454,685.59 - 06 August 2008

Secondary Eclipse - ? JD ?

Maximum Separation Date- ?

Comparison Star:
HD161406
SAO 1857266
DM -27d11914 K5
R.A. (1985) 17h 43m 22.5s
DEC. (1985) -27d 25' 14"
I= ?; R= ?; V= 8.1; B= ?; U=?

Check Star :
HD161407
SAO 185727
DM -27d11915 K5
R.A. (1985) 17h 43m 23.7s
DEC. (1985) -27d 34' 57"
(R - I)= ?; V= 8.7; B=?; U= ?