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Back garden observing session 29.11.2017


Doc
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Went out in the back garden last night. Managed four hours between 18.30 and 22.30. Almost all of the double stars below were observed with the 12mm Clave' eyepiece. I'm really astounded by these Clave's, the 12mm is really sharp and shows pin point stars right to the edge. The 12mm Clave' gives a magnification of x70. I know they are not ortho's but they do act like such.

 

Perseus

 

Epsilon Per - 2.91/8.88 - Easy - White/White

Eta Per - 3.75/8.50 - Easy - Yellow/White

Zeta Per - 2.88/9.16 - Easy - White/White

Theta Per - 4.11/20.25 - 20.4" - Hard and only glimpsed on and off - White/White

 

Aries

 

Gamma Ari - 3.88/4.58 - 7.5" - Medium - White/White

41 Ari - 3.61/11.04 - 34" - Hard only glimpse it occasionally as it's 11.04 mag and on the limit of the scope - White/White


Auriga

 

Theta Aur - 2.65/7.20 - 4" - Hard - White/White

 

Cepheus

 

Beta Cep - 3.23/8.63 - 14.8" - Easy - White/White

Garnet Star - 4.01 - Couldn't detect any of the companions - Red

Xi Cep - 4.40/6.40 - 8.4" - Medium - White/White

 

Gemini

 

Alpha Gem (Castor) - 1.58/2.97 - 5.3" - Medium - White/White

77 Gem - 3.56/8.20 - 7.9" - Hard - Whte/White

Eta Gem - 3.29/6.15 - 1.6" - Only managed a peanut split even with the 6mm Delos

Epsilon Gem - 3.00/9.64 - 110" - Very Easy - White/White

Delta Gem - 3.53/8.18 - 5.5" - Easy - White/White

Zeta Gem - 4.07/10.70 - 87.4" - Easy

 

Ursa Major

 

23 UrMa - 3.65/9.18 - 23.2" - Easy - White/White

Iota UrMa - 3.14/9.20 - 1.9" - Only managed a peanut split

 

Orion

 

Lambda Ori - 3.51/5.45/10.72 - 4.9"/28.7" - All three stars split

Zeta Ori - 1.9/3.7/9.6 - 2.3"/58" - Medium - All three stars split

Epsilon Ori - 1.72/10.5 - 179" - Easy

Beta Ori (Rigel) - 0.28/6.80 - 9.3" - Easy - White/White

Tau Ori - 3.59/11.00 - 33.3" - Hard - Only glimpsed with averted vision

Eta Ori - 3.39/4.87 - 1.8" - Only managed a peanut split.

31 Ori - 4.69/9.70 - 12.7" - Medium - Secondary looked very dim, I would say dimmer then 9.70 mag

Iota Ori - 2.9/7.0/9.7 - 10.8"/49.4" - All three seen - Easy

 

 

 

 

Edited by Doc
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Some nice targets there Mick.

 

In Decembers Astronomy nows 'sky tour' they list an interesting double :

Omicron Eridanus. Have you seen that one....?

Draw a line from Saiph to Rigel in Orion, then double the first line going in the same direction, and go up a bit.

Its actually a multiple star. Its on my bagging list.

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I believe its a bright main star with 2 faint companians, one a white dwarf, one a red dwarf.

Excuse the poor quality pic, but you get the gist....

 

26970333229_7b03294bce_n.jpg

Edited by Bino-viewer
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Sounds interesting. I've found Castor can be quite difficult as both components are bright. I have managed to snap it on a few occasions, though, usually with a webcam.

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