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Old 12-02-2018, 09:23 AM
Tropo-Bob (Bob)
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Join Date: Sep 2013
Location: Cairns
Posts: 1,584
Quote:
Originally Posted by Tinderboxsky View Post

...

I was outside last night using Ross Gould’s Double Star article in AS&T for inspiration and resolved to put down an observation report. So here goes...


Gamma Vol. @ 62X (Mag 3.9,5.4, @ 14.4”) - fine unequal pair, bright yellow with pale yellow companion...


Epsilon @100X (Mag 4.4,7.3 @ 6”) - unequal, moderately close pair, white with hint of yellow primary and very faint beautiful point of light for companion. Jewel like appearance...

Kappa @62X (Mag 5.3,5.6,7.7 @ 63” & 37”) - two bright bluish-white beacons with a slightly fainter but still bright nearby star forming an arc that stood out as a beacon in the relatively sparse FOV...


Scope: Vixen NA140SS on TRex mount and LVW 13, 8, 5 & 3.5 eyepieces.
Navigation: Toshimi Taki Atlas of Double Stars and Sky Safari Plus.
I observed these last night, which was my first cloud free night for this year. I used my Tak FC 100D.

Gamma Vol. https://en.wikipedia.org/wiki/Gamma_Volantis
Using a Delite 15mm (50x):- A widely separated, unequal pair, of about 2 mags different. Primary had light touch of orange, secondary looked more blue/white.

Epsilon Volantis https://en.wikipedia.org/wiki/Epsilon_Volantis
Delite 7mm (105x)- Unequal stars. A delicate and pleasing pair of about 3 mags difference. Primary white, secondary orange. Separation was not immediately obvious at 50x.


Kappa Volantis (Triple) https://en.wikipedia.org/wiki/Kappa_Volantis
Panoptic 24mm (30x)- A very wide pair of bright, near equal white stars, with a third star of about 2 mags fainter extending the line in a bow shape. The separation to the third star, which had an orange tint is about ˝ that of the bright pair.

Remarks:- When I compare the colours that I observed with the spectral classes, I seem to have estimated the colours of the primaries correctly, but not the colours of the secondaries (except Kappa, where the 3rd star has no information). It looks like something I need to work upon, or perhaps the secondaries were just too faint for me to estimate reliably.
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