11 replies to this topic

[asteroid7]

Mullaney calls this pair golden yellow & greenish-blue.
Haas calls this a grapefruit orange pair.
A few years ago I called this a yellow & blue pair in a Mak.
This time around, I see a bright, strong yellow pair

What colors do you see?

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[Jeremy Perez]

Hi Rich, I saw Yellow and White for the Gamma Delphini pair...although A and F class stars usually give me fits with spurious color. If I observed it on a different night with a nice dinner of pasta resting in my gut, or the sound of coyotes yipping in the distance, I might end up seeing Mullaney's greenish-blue or something else on that secondary. Great sketch btw.

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[Cantankerously]

yellow green

[chrysalis]

Rich, I have always seen this pair as yellow and yellow, except one memorable night when I could have sworn the dimmer companion had a greenish tinge...

IF it ever clears here again, I'll check it out...

[SabiaJD]

I frequently showcase this star at public viewing nights. Did so last night. In the Clark refractor last night I did get a Yellow and blue-green color last night. I do want to qualify the sky was partly cloudy with patchy hazy in the sky. It was also on my local meridian ayt the time of observation.

[PJ Anway]

1)in my 80mm at 96X, I noted - yellow and blue.
2)Smyth - "yellow primary and a light emerald secondary"
3)Olcott - "a yellow primary and bluish-green secondary"
4)Flammarion - "orange and green"

The color difference is mentioned by Crossley in his "Handbook of Double Stars". He states that " B appears to vary in colour; it is given as yellow, green and blue, by different observers."

[JIMZ7]

It depends on what size scope you use. I usually see both golden stars. I sometimes have seen one of them with a light green color mixed-in.

[Rich (RLTYS)]

Rich

I've seen the two components as Pale Yellow and Greenish Blue. They should really be the same color.

Clear Skies.
Rich (RLTYS)

[stevecoe]

I saw light yellow and very light blue in my old 13 inch at 100X on a great night.

Steve Coe

[chrysalis]

It's never gonna clear up here ...

[lunator]

I was viewing them last night and saw them as yellow but the primary had a warmer 'tint' to it.

I was viewing through an 8" newt & ortho eyepiece.

Cheers

ian

[chrysalis]

Tonight: 71X yellow and yellow with a hint of green or blue; 115X same colors; 500X (9mm Expanse + 3X Barlow) yellow and yellow-green.