APOD: Orion and Official Star Names (2016 Dec 04)

Comments and questions about the APOD on the main view screen.
User avatar
APOD Robot
Otto Posterman
Posts: 3422
Joined: Fri Dec 04, 2009 3:27 am

APOD: Orion and Official Star Names (2016 Dec 04)

Post by APOD Robot » Sun Dec 04, 2016 5:11 am

Image Orion and Official Star Names

Explanation: Familiar stars in Orion and constellations across the sky now have official names. Over the past year, the International Astronomical Union, the only body officially tasked with naming stars, approved names already in common use for 227 of the brightest stars, including the most famous stars on the sky Sirius, Polaris, and Betelgeuse. Pictured, the constellation of Orion is shown with several of these now-official star names superposed. Spanning about 30 degrees, this breath-taking vista stretches across the well-known constellation from head to toe (left to right) and beyond. The common names for all three stars in Orion's belt are also now official. At 1,500 light years away, the Great Orion Nebula is the closest large star forming region, here visible just right and below center. Also visible are famous nebulae including the Horsehead Nebula and the Witch Head Nebula. Of course, the Orion Nebula and bright stars are easy to see with the unaided eye, but dust clouds and emission from the extensive interstellar gas in this nebula-rich complex, are too faint and much harder to record. In the featured mosaic of broadband telescopic images, additional image data acquired with a narrow hydrogen alpha filter was used to bring out the pervasive tendrils of energized atomic hydrogen gas like in the arc of the giant Barnard's Loop.

<< Previous APOD This Day in APOD Next APOD >>
[/b]

User avatar
Ann
4725 Å
Posts: 9245
Joined: Sat May 29, 2010 5:33 am

Re: APOD: Orion and Official Star Names (2016 Dec 04)

Post by Ann » Sun Dec 04, 2016 6:59 am

Na'ir al Saif? Hatysa? Iota Orionis? Photo: Tenho Tuomi.
There are even more stars in Orion that have proper names. Consider Iota Orionis, one of the few O-type stars visible to the naked eye. My software, Guide, has two proper names for it: Na'ir al Saif (The Bright One in the Sword) and Hatysa.

My software suggests an additional name for Rigel, if you get tired of calling it Rigel: Algebar. Meissa, the fascinating O-type star at the "head" of Orion, also has an alternative name: Heka. (At least if you ask Guide, it does.) And while Jim Kaler calls Pi-3 Orionis Thabit or Tabit, Guide uses the same appellation for Upsilon Orionis.

Names, names, names, how do I call the stars by their names?

Ann
Color Commentator

Boomer12k
:---[===] *
Posts: 2390
Joined: Sun Apr 22, 2007 12:07 am

Re: APOD: Orion and Official Star Names (2016 Dec 04)

Post by Boomer12k » Sun Dec 04, 2016 9:14 am

What an awesome image... soooo much....
Below the Great Nebula looks like another Fox Nebula. Below that the whole Bernard's Loop looks like another Bat Nebula...

:---[===] *

heehaw

Re: APOD: Orion and Official Star Names (2016 Dec 04)

Post by heehaw » Sun Dec 04, 2016 10:34 am

We humans did not get to choose the location of our Sun in the Galaxy. We are very close to the plane, unsurprisingly. So looking out into the plane to study our neighbors (neighbours) we have to look through the fog of the interstellar medium. But! Great luck! At some distance, a part of the plane has somehow gravitationally been thrust OUT of the plane: Orion! and so we can see it without a lot of intervening stuff making it hard to see clearly. On the same theme, we are lucky indeed that out Sun's immediate surrounds are so very empty, giving us clear views, both North and South, out of the Galaxy and into the Universe. Where would we be, if instead the Sun had happened to be passing through a messy pile of interstellar dreck? So we look at Orion with joy and happiness! Merry Christmas and Happy New Year!

RedGargoyle

Re: APOD: Orion and Official Star Names (2016 Dec 04)

Post by RedGargoyle » Sun Dec 04, 2016 11:20 am

Today's picture is great but appeared already on 16.03.2015.

hamilton1
Ensign
Posts: 40
Joined: Mon Nov 02, 2015 12:00 pm

Re: APOD: Orion and Official Star Names (2016 Dec 04)

Post by hamilton1 » Sun Dec 04, 2016 11:33 am

RedGargoyle wrote:Today's picture is great but appeared already on 16.03.2015.
Lots of APODs get repeated.

Guest

Re: APOD: Orion and Official Star Names (2016 Dec 04)

Post by Guest » Sun Dec 04, 2016 1:08 pm

What about the sword?

Markus Schwarz
Science Officer
Posts: 217
Joined: Wed Apr 29, 2009 11:55 am
Location: Germany

Re: APOD: Orion and Official Star Names (2016 Dec 04)

Post by Markus Schwarz » Sun Dec 04, 2016 1:20 pm

Guest wrote:What about the sword?
Image
Credit: xkcd

Guest

Re: APOD: Orion and Official Star Names (2016 Dec 04)

Post by Guest » Sun Dec 04, 2016 1:31 pm

Markus Schwarz wrote:
Guest wrote:What about the sword?
Image
Credit: xkcd
Really??? My kids read this!!!

User avatar
geckzilla
Ocular Digitator
Posts: 8913
Joined: Wed Sep 12, 2007 12:42 pm
Location: Modesto, CA

Re: APOD: Orion and Official Star Names (2016 Dec 04)

Post by geckzilla » Sun Dec 04, 2016 1:39 pm

Guest wrote:
Markus Schwarz wrote:
Guest wrote:What about the sword?
Image
Credit: xkcd
Really??? My kids read this!!!
They should get a good snicker, then. ;)
Just call me "geck" because "zilla" is like a last name.

Guest

Re: APOD: Orion and Official Star Names (2016 Dec 04)

Post by Guest » Sun Dec 04, 2016 1:51 pm

geckzilla wrote:
Guest wrote:
Markus Schwarz wrote: Image
Credit: xkcd
Really??? My kids read this!!!
They should get a good snicker, then. ;)
At 7 years old? Are you serious? Are you out of you mind? How do I explain this kind of thing to a child?

User avatar
geckzilla
Ocular Digitator
Posts: 8913
Joined: Wed Sep 12, 2007 12:42 pm
Location: Modesto, CA

Re: APOD: Orion and Official Star Names (2016 Dec 04)

Post by geckzilla » Sun Dec 04, 2016 1:55 pm

Guest wrote:
geckzilla wrote:
Guest wrote: Really??? My kids read this!!!
They should get a good snicker, then. ;)
At 7 years old? Are you serious? Are you out of you mind? How do I explain this kind of thing to a child?
Sometimes people see body parts in nebulas and clouds. I'm sorry? It's a body part.
Just call me "geck" because "zilla" is like a last name.

geoffrey.landis
Ensign
Posts: 39
Joined: Thu Aug 20, 2009 3:49 pm

What color?

Post by geoffrey.landis » Sun Dec 04, 2016 2:03 pm

Come on, really. Orion DOES NOT LOOK LIKE THAT.

Please put in the captions SOMEWHERE what the colors mean.

User avatar
Cousin Ricky
Science Officer
Posts: 240
Joined: Mon Aug 26, 2013 4:08 pm
Location: St. Thomas, U.S. Virgin Islands (+18.3, -64.9)

Re: APOD: Orion and Official Star Names (2016 Dec 04)

Post by Cousin Ricky » Sun Dec 04, 2016 2:44 pm

Guest wrote:
geckzilla wrote:
Guest wrote:
Really??? My kids read this!!!
They should get a good snicker, then. ;)
At 7 years old? Are you serious? Are you out of you mind? How do I explain this kind of thing to a child?
If your child is a boy, he already has a dong, and you don't need to explain anything. If your child is a girl, it's high time you started explaining basic facts of anatomy. Heck, I grew up with 3 brothers and 4 sisters, and our parents had no trouble explaining anything to us. Be a parent! (If your child is transgender, I'd say to swap the genders in the first two sentences, except that the type of parent who thinks that knowledge of basic anatomy is damaging to kids probably does not accept the transgender phenomenon.)

User avatar
Chris Peterson
Abominable Snowman
Posts: 14136
Joined: Wed Jan 31, 2007 11:13 pm
Location: Guffey, Colorado, USA

Re: APOD: Orion and Official Star Names (2016 Dec 04)

Post by Chris Peterson » Sun Dec 04, 2016 3:11 pm

Guest wrote:At 7 years old? Are you serious? Are you out of you mind? How do I explain this kind of thing to a child?
The same way you explain where Orion's head or hand are.
Chris

*****************************************
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com

Guest

Re: APOD: Orion and Official Star Names (2016 Dec 04)

Post by Guest » Sun Dec 04, 2016 3:12 pm

Cousin Ricky wrote:
Guest wrote:
geckzilla wrote: They should get a good snicker, then. ;)
At 7 years old? Are you serious? Are you out of you mind? How do I explain this kind of thing to a child?
If your child is a boy, he already has a dong, and you don't need to explain anything. If your child is a girl, it's high time you started explaining basic facts of anatomy. Heck, I grew up with 3 brothers and 4 sisters, and our parents had no trouble explaining anything to us. Be a parent! (If your child is transgender, I'd say to swap the genders in the first two sentences, except that the type of parent who thinks that knowledge of basic anatomy is damaging to kids probably does not accept the transgender phenomenon.)
Time to block this site. Astronomy should be about stars, not dildos. Grow up and be mature...

User avatar
Chris Peterson
Abominable Snowman
Posts: 14136
Joined: Wed Jan 31, 2007 11:13 pm
Location: Guffey, Colorado, USA

Re: APOD: Orion and Official Star Names (2016 Dec 04)

Post by Chris Peterson » Sun Dec 04, 2016 3:22 pm

Ann wrote:There are even more stars in Orion that have proper names.
Yes, but those names are not official. There are many stars in the sky that have traditional names (which may vary between cultures) but which do not have official recognition. You could refer to Beta Orion as Rigel in any publication and have an expectation that you would be understood. You could not refer to it as Algebar, or to Iota Orion as Na'ir al Saif, and have that same expectation.
Names, names, names, how do I call the stars by their names?
By whatever name seems appropriate for the context. In a scientific discussion, that would either be a recognized catalog designation, or one of the IAU recognized proper names.
Chris

*****************************************
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com

User avatar
Chris Peterson
Abominable Snowman
Posts: 14136
Joined: Wed Jan 31, 2007 11:13 pm
Location: Guffey, Colorado, USA

Re: APOD: Orion and Official Star Names (2016 Dec 04)

Post by Chris Peterson » Sun Dec 04, 2016 3:23 pm

Guest wrote:Time to block this site. Astronomy should be about stars, not dildos.
You're the only one making that peculiar association.
Chris

*****************************************
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com

starsurfer
Stellar Cartographer
Posts: 3379
Joined: Thu Mar 15, 2012 7:25 pm

Re: APOD: Orion and Official Star Names (2016 Dec 04)

Post by starsurfer » Sun Dec 04, 2016 5:04 pm

This is one of the best astroimages of the 21st century! It's a shame it's not north up. :(

old dude

Re: APOD: Orion and Official Star Names (2016 Dec 04)

Post by old dude » Sun Dec 04, 2016 5:12 pm

Guest wrote: Time to block this site. Astronomy should be about stars, not dildos. Grow up and be mature...
You could have dug up a dozen of statues and paintings of medieval noblemen with swords and daggers hanging in a similar way to show your kid during the time you spent complaining about things you think are in the picture that are not.

/ just saying

starsurfer
Stellar Cartographer
Posts: 3379
Joined: Thu Mar 15, 2012 7:25 pm

Re: What color?

Post by starsurfer » Sun Dec 04, 2016 5:16 pm

geoffrey.landis wrote:Come on, really. Orion DOES NOT LOOK LIKE THAT.

Please put in the captions SOMEWHERE what the colors mean.
Red means hydrogen gas. Brown means dust. Blue means reflection nebulae as the result of dust reflecting light from blue stars.

starsurfer
Stellar Cartographer
Posts: 3379
Joined: Thu Mar 15, 2012 7:25 pm

Re: APOD: Orion and Official Star Names (2016 Dec 04)

Post by starsurfer » Sun Dec 04, 2016 5:18 pm

geckzilla wrote:
Guest wrote:
geckzilla wrote: They should get a good snicker, then. ;)
At 7 years old? Are you serious? Are you out of you mind? How do I explain this kind of thing to a child?
Sometimes people see body parts in nebulas and clouds. I'm sorry? It's a body part.
Time for some space news. :D

User avatar
Chris Peterson
Abominable Snowman
Posts: 14136
Joined: Wed Jan 31, 2007 11:13 pm
Location: Guffey, Colorado, USA

Re: APOD: Orion and Official Star Names (2016 Dec 04)

Post by Chris Peterson » Sun Dec 04, 2016 5:18 pm

starsurfer wrote:This is one of the best astroimages of the 21st century! It's a shame it's not north up. :(
Rotating a high aspect ratio field (especially a wide field) in order to maintain a landscape format, which works best with large displays, seems completely reasonable.
Chris

*****************************************
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com

starsurfer
Stellar Cartographer
Posts: 3379
Joined: Thu Mar 15, 2012 7:25 pm

Re: APOD: Orion and Official Star Names (2016 Dec 04)

Post by starsurfer » Sun Dec 04, 2016 7:11 pm

Chris Peterson wrote:
starsurfer wrote:This is one of the best astroimages of the 21st century! It's a shame it's not north up. :(
Rotating a high aspect ratio field (especially a wide field) in order to maintain a landscape format, which works best with large displays, seems completely reasonable.
Or maybe it could be rotated and be portrait?

User avatar
Chris Peterson
Abominable Snowman
Posts: 14136
Joined: Wed Jan 31, 2007 11:13 pm
Location: Guffey, Colorado, USA

Re: APOD: Orion and Official Star Names (2016 Dec 04)

Post by Chris Peterson » Sun Dec 04, 2016 7:14 pm

starsurfer wrote:
Chris Peterson wrote:
starsurfer wrote:This is one of the best astroimages of the 21st century! It's a shame it's not north up. :(
Rotating a high aspect ratio field (especially a wide field) in order to maintain a landscape format, which works best with large displays, seems completely reasonable.
Or maybe it could be rotated and be portrait?
If it were portrait it wouldn't need to be rotated in order to be north up. But I usually target high aspect ratio images to landscape since virtually all large, high resolution displays are that format.
Chris

*****************************************
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com