Constellations: Cepheus
Double Stars: δ Cephei & HD 213307
Moon: Waning Gibbous (97.9%)
Location: Home
Date: 2018-05-30
Time: 2:15 AM ADT
Equipment: Visual + Binoculars, 15x70 + 10" Meade SCT with 30 mm eyepiece
Transparency: not recorded
Seeing: not recorded
Temperature: 7º C
Light breeze, no clouds.
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SUCCESS! Despite the almost full Moon, I located Cepheus above our roofline. Visually: was able to locate δ Cephei. Binoculars: Used the binoculars on a tripod and located δ, ε and ζ Cephei but could not positively identify the companion star. Telescope: I used the 10" Meade SCT to navigate to Cepheus then manoeuvred to δ Cephei, and there was the companion star HD213307. δ Cephei was bright yellow and almost double in size compared to its blue-yellow companion. There was a row of 3 stars below them and then discovered the centre star (H4) was also a double (using averted vision). All the other stars in the FOV were fairly faint. More time required at the eyepiece. |
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