Planets over Perth (APOD 12 Sep 2008)
Planets over Perth (APOD 12 Sep 2008)
http://apod.nasa.gov/apod/ap080912.html
Nice picture, but what is the star between Venus and Mars and to the right of Mercury?
Nice picture, but what is the star between Venus and Mars and to the right of Mercury?
- orin stepanek
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The three brightest white dots above the moon are the planets. I think the red light is one of those aircraft warning lights they put on top of towers and buildings. But there is a fourth, fainter white dot. What is it?orin stepanek wrote:The red ball over the skyscrapers; is that one of the planets? Looks awful big in comparison to the moon. I was thinking the three dots above it were the planets; or is one of them a star?
What is it?
Porrima, δVirginisbystander wrote:But there is a fourth, fainter white dot. What is it?
Regards,
Henk
21 cm: the universal wavelength of hydrogen
Henk
21 cm: the universal wavelength of hydrogen
- orin stepanek
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That's what I thought the red ball was until I read your first post. I blew the picture up and was able to see several stars; and what looked like a constellation over to the right of the planets. I couldn't quite make it out; but it looked like a triangle of stars.bystander wrote:The three brightest white dots above the moon are the planets. I think the red light is one of those aircraft warning lights they put on top of towers and buildings. But there is a fourth, fainter white dot. What is it?orin stepanek wrote:The red ball over the skyscrapers; is that one of the planets? Looks awful big in comparison to the moon. I was thinking the three dots above it were the planets; or is one of them a star?
Orin
Orin
Smile today; tomorrow's another day!
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Re: What is it?
Thanks, Henk! But which is it? Porrima (gamma virginis / γ Vir) or Auva (delta virginis / δ Vir)henk21cm wrote:Porrima, δVirginis
![Question :?:](./images/smilies/icon_question.gif)
Either it's just a barking dog or the baby will be born head first.
Just looked at the uncropped photo. There are two more stars at the top, and one at the extreme top right, that form an arc with Mercury and Mars. Curious about them, too.
I'm talking about the faint white dot to the right of Mercury and almost in line with Venus and Mars. About where the fifth star (epsilon crucis / ε Cru) would be in the Southern Cross.orin stepanek wrote:That's what I thought the red ball was until I read your first post. I blew the picture up and was able to see several stars; and what looked like a constellation over to the right of the planets. I couldn't quite make it out; but it looked like a triangle of stars.
Re: What is it?
Excuse. γ Virginisbystander wrote:Thanks, Henk! But which is it? Porrima (gamma virginis / γ Vir) or Auva (delta virginis / δ Vir) :?:henk21cm wrote:Porrima, δVirginis
The other question: since it is still daylight here (monitor of 10 years old), i only see one, about the same height in the image as γ Virginis, at a distance from γ Virginis of the order of Moon-Mercury or Mars-Venus (in projection!). That could be δ Virginis.
Regards,
Henk
21 cm: the universal wavelength of hydrogen
Henk
21 cm: the universal wavelength of hydrogen
- orin stepanek
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- Chris Peterson
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Here is a chart showing the visible stars. Forming a triangle with Mercury and Venus is Zaniah, eta Virgo. All the visible stars in the central and right parts of the image are in Virgo. At the lower left you can see delta and gamma Crater, and possible a couple of other stars in Crater above them.bystander wrote:Just looked at the uncropped photo. There are two more stars at the top, and one at the extreme top right, that form an arc with Mercury and Mars. Curious about them, too.
![Image](http://www.cloudbait.com/misc/20080912_apod_chart.jpg)
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Thanks, Chris! Zaniah (η Vir) was the one I was looking for. I guess that's Auva (δ Vir) between Porrima (γ Vir) and Vindemiatrix (ε Vir).Chris Peterson wrote:Here is a chart showing the visible stars. Forming a triangle with Mercury and Venus is Zaniah, eta Virgo. All the visible stars in the central and right parts of the image are in Virgo. At the lower left you can see delta and gamma Crater, and possible a couple of other stars in Crater above them.
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