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Dunlop 178- Colour Controvesy
Dunlop 178 is a double star in Lupus and the primary pair are stated as being of 6.5 and 7.3 magnitude with a separation of 30.9”. Hardly a challenge but beautiful to look upon!
Colours are red and orange, which I find fascinating, as I do not recall previously seeing any doubles where both stars are red in hue.
Last week,I have observed this through an Orion 80mm triplet, a 115mm Vixen refractor and an 8” Edge Celestron, whilst star hopping to a nearby planetary nebula.
However, my perception of the colours is at odds with the only published details that I found, which describe the pair as yellow orange and white. (In Double Stars for Small Telescopes).
Since the Moon is waxing, and DSOs are disappearing, I suggest this as target for those who are still out there and I am interested to hear how other observers perceive the colours.
Dunlop 178 is located at 15h11.6; -45.17.
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