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RZ Pegasi

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#1 flt158

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Posted 22 October 2015 - 04:47 PM

I wish to thank Dave Mitsky for encouraging some of us to hunt down a recommended carbon star each month. 

For the month of October, he challenged us to seek after the carbon star RZ Pegasi.

I found it easy enough less than a degree north west of +5.6 magnitude star Pi 1 Pegasi at 40X. RZ Peg is dim enough at present. I have given it a magnitude estimate of +10.6 on the AAVSO website. It is of class C9; and I did find quite an intense orange. I used 40X and 112X with my 158 mm Williams Optics apochromatic refractor on Thursday night 22nd October. It is currently quite high in altitude over Irish skies. 

 

Clear skies, 

 

Aubrey.


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#2 Rich (RLTYS)

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Posted 23 October 2015 - 05:16 AM

In my 10" refl I'd also describe RZ as a nice looking orange star.

 

Rich (RLTYS)


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#3 lee14

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Posted 23 October 2015 - 07:28 PM

I haven't looked at RZ in a while, but if it's saturated color that interests you, I'd recommend T Cephei. Absolutely the reddest star I've ever seen.

 

Lee

AAVSO since 1991



#4 Rich (RLTYS)

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Posted 24 October 2015 - 07:02 AM

There's also R Lepus "Hinds Crimson Star".

 

Rich (RLTYS)



#5 ssmith

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Posted 24 October 2015 - 10:29 AM

Here is a photo of RZ Peg I took last year.  I will have to make a point of taking a photo in the coming days with my 120mm scope to see how the brightness has changed.

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#6 Rich (RLTYS)

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Posted 24 October 2015 - 05:39 PM

I was not aware that RZ was also a double star. Thanks for the info.

 

Rich (RLTYS)



#7 ssmith

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Posted 24 October 2015 - 07:01 PM

As you may already be aware a large proportion of carbon stars are in fact double stars since one of the mechanisms by which a star beomes Carbon-rich is by the accretion of mass ( and carbon) from a nearby companion - typically a white dwarf.  Obviously the companion shown is too far away, but perhaps there is a closer undetected companion.


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#8 flt158

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Posted 27 October 2015 - 04:16 PM

Here is a photo of RZ Peg I took last year.  I will have to make a point of taking a photo in the coming days with my 120mm scope to see how the brightness has changed.

Stunning shot, S. Smith. 

 

For me, unfortunately, magnitude +12.4 is too faint for me. I have too much light pollution. 

 

Aubrey.



#9 CollinofAlabama

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Posted 09 October 2019 - 12:05 PM

I am having difficulty finding a star map with RZ Pegasi on it.  Does anyone have a url?



#10 DHEB

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Posted 10 October 2019 - 02:31 AM

I am having difficulty finding a star map with RZ Pegasi on it.  Does anyone have a url?

Check AAVSO's Variable Star Plotter



#11 KMA

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Posted 10 October 2019 - 08:41 AM

The picture of RZ Peg is nice indeed.
The dim star positioned very close
south-west is variable RY Peg
probably very small amplitude 12 - 12.5m visual.
At this time RZ Peg is at maximum close to 8.3mV
so RY Peg is impossible to see.
with best regards
KMA

Edited by KMA, 10 October 2019 - 11:00 AM.



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