David Cotterell Toronto, Ontario "If an observer actually sees an object, there is no point in referring to a formula to find out whether he ought to see it; and if he fails to detect it, no formula will ensure his success." - W.H. Steavenson 8" f/15.5 TEC Maksutov - 16" f/5 Teeter/Zambuto Dob - TEC 140 - AT 65EDQ APO Refractor - Astro-Physics Mach 1 GTO Mount - iOptron ZEQ25 mount - Discmount DM6 - Canon 60Da
Quote:The biggest scope I've used for E is a 10 inch. Because of its dimness I saw no color other than faint grey or dim bluewhite. More gray I'd say. larger scope might reveal the orange tinge.Bill
I want to do more then just look.
Meade 12.5" F/6 Research Grade
1971 Criterion RV-6
Orion Observer 70mm Refractor
Homemade 4" f/12 reflector (being rebuilt)
My astro page
Quote:Consider my photo from last year: in another thread It seems to show "E" to be distinctly orange in colour when compared with the other 5 stars...Any visual confirmation from the CN community?Dave
Clear Skies, TonyScopes: Celestron 150mm SCT, ES 102mm refractor, 114mm Newt, Circle T 80mm refractor, Cel./Vix. 60mm refractor "the Brute" EP's: Various and sundry along with barlows WO and ES Dielectric Diagonals Filters: DGM Optics NPB, Orion SkyGlow Filter, color and longpass AstroZap Dew Shield, Vibration Pads etc... AstroPlanner V2.1, SkySafari 4 Plus, Vortex 8X42, 60's 7X35 Binocs Astronomy in the Orange Zone! ...73 de KM5JH...
Quote:Its a testament to the progressive nature of astronomy that this topic - complete with pics - is had on an object observed tirelessly by amateurs for untold decades. Pete
Quote: But, perhaps when set in a greenish nebula there might be a false-colour effect; I'll try it next clear night.
"If I say something in the forest and my wife isn't there to hear it, am I still wrong?"
20" homebuilt truss dob 6" watson refractor
Quote:I think it's a color contrast effect. Perhaps GAIA will pin down the B-V color...
Roberto Botero, Kent, UK