- Double Stars (Hya) -

And (31) Cep (13) CVn (4) Her (12) Oph (1) Tau (11)
Aql (9) Cet (1) Cyg (19) Hya (2) Ori (8) Tri (5)
Ari (8) CMa (1) Del (2) Leo (12) Peg (16) UMa (11)
Aur (27) Cnc (9) Dra (8) LMi (4) Per (18) UMi (1)
Boo (8) Com (1) Equ (5) Lyn (16) Psc (7) Vir (6)
Cam (5) CrB (4) Eri (1) Lyr (8) Ser (3)
Cas (17) Crv (1) Gem (19) Mon (1) Sex (1)

STF 1245 (**)

Name: STF1245
Type: **
Constellation: Hya
Coordinates: 08h35m51.05s / +06°37'13.90"

Components:
m1 m2 ρ θ Year
AB 6m0 7m2 10.1" 25° 2018
AC 6m0 10m7 100.4" 109° 2017
AD 6m0 11m9 110.3" 292° 2017
AE 6m0 9m6 114.8" 207° 2017
Robert Zebahl
70mm f/5.7, 57x, Bortle 6-
AB at 22x separated, but very close, uneven pair. A appeared white-yellowish, B orange, partly reddish. Opposite in a wide separation the fainter component E was visible. At 57x, A appeared white-yellowish, B orange.

../sketches/2020-03-24_stf1245.jpg

STF 1273 (**)

Name: STF1273, 11 Hya, epsilon Hya
Group: 11 Hya, epsilon Hya
Type: **
Constellation: Hya
Coordinates: 08h46m46.51s / +06°25'07.70"

Components:
m1 m2 ρ θ Year
AB-C 3m5 6m7 2.9" 309° 2017

../images/binary-star-orbits/STF1273-AB-C-orbit.jpg

Robert Zebahl
70mm f/5.7, 133x, Bortle 6-
Not split. Although a slight brightening was visible in the first diffraction ring, it could also have come from slight coma of the refractor.