Beta angle was a Natural sciences good articles nominee, but did not meet the good article criteria at the time. There may be suggestions below for improving the article. Once these issues have been addressed, the article can be renominated. Editors may also seek a reassessment of the decision if they believe there was a mistake. | ||||||||||
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Am I half asleep, or does this math seem to be incorrect? If the beta angle varies ± 23.45o/year , assuming a starting beta angle (to keep the math simple) of 23.45o, then wouldn't max = 46.9o and min = 0o? I'm no astrophysicist, and this line is cited, so can anyone clear up my confusion - or am I right? Thanks! Spiral5800 ( talk) 18:15, 18 June 2009 (UTC)
Reviewer: Spiral5800 ( talk) 11:13, 15 June 2010 (UTC)
I am the wikipedian who originally created this article, after watching a shuttle launch one day and hearing the announcers talk about the 'beta angle'. To my astonishment, "beta angle" wasn't listed on wikipedia! Since I started the article, a number of very intelligent and thoughtful people have visited and added to it, and the article has changed profoundly since I made the initial posting. For a topic as relatively narrow as this one, its hard to imagine expanding it [too] much more from the point it has reached at this point. That said, we haven't reached the featured article status yet by a long shot - though I believe that we certainly have reached the good article criteria. I know my vote doesn't count, so I vote for world peace ;) Spiral5800 ( talk) 11:13, 15 June 2010 (UTC)
Hi there. I see there's a note above that 'an editor' has agreed to review the article, but since there's no sign of any activity on that front in the three weeks or so since that message was left, I'm going to disregard it and carry out a full review. If there's any objection to that approach, just let me know and I'll leave the article alone. Cheers. 4u1e ( talk) 13:06, 7 July 2010 (UTC)
As regular editors of this page have not acted on the copyright violations identified above, I've removed the following problem items:
This section doesn't deliver what it promises, an explanation of why beta angle is importance in space flight. It expresses some relationships between what beta angle existed on the ISS and what the Space Shuttle was required to do but offers no clue as to why that's the case. Why does the orbiter go into "rotisserie" mode if the beta angle is great than 60 degress? Why can the orbiter only launch to the ISS during a beta cutout? Does flying in high beta angle turn astronauts into zombies? Does it cause moss to grow in the thruster nozzles? After reading I know beta angle is important but have no idea why. I assume it has something to do with temperature or light? 72.64.98.101 Steevithak ( talk) 15:51, 21 December 2014 (UTC)
It is requested that an orbital mechanics diagram or diagrams be
included in this article to
improve its quality. Specific illustrations, plots or diagrams can be requested at the
Graphic Lab. For more information, refer to discussion on this page and/or the listing at Wikipedia:Requested images. |
The current diagram is not clear; the sun vector appears to be in the orbital plane. — Swpb talk 19:36, 13 November 2015 (UTC)
There's an alternative formulation , which can be found in the Spacecraft Thermal Control Handbook, Volume 1, page 40;
They're just different. The formula is STCH is in terms of solar RA and DEC (in the equatorial coordinate system) as opposed to the given formula, which is in solar longitude (in the ecliptic.)
β(t) = arcsin ( cos ( δS (t) ) · sin ( i ) · sin ( Ω(t) - ΩS (t) ) + sin ( δ S (t) ) · cos ( i ) )
δS = solar declination ΩS(t) = solar right ascension
This is simpler in some ways, but they are equivalent.
Beta angle was a Natural sciences good articles nominee, but did not meet the good article criteria at the time. There may be suggestions below for improving the article. Once these issues have been addressed, the article can be renominated. Editors may also seek a reassessment of the decision if they believe there was a mistake. | ||||||||||
|
This article is rated Start-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | |||||||||||
|
This line appears in the article:
Am I half asleep, or does this math seem to be incorrect? If the beta angle varies ± 23.45o/year , assuming a starting beta angle (to keep the math simple) of 23.45o, then wouldn't max = 46.9o and min = 0o? I'm no astrophysicist, and this line is cited, so can anyone clear up my confusion - or am I right? Thanks! Spiral5800 ( talk) 18:15, 18 June 2009 (UTC)
Reviewer: Spiral5800 ( talk) 11:13, 15 June 2010 (UTC)
I am the wikipedian who originally created this article, after watching a shuttle launch one day and hearing the announcers talk about the 'beta angle'. To my astonishment, "beta angle" wasn't listed on wikipedia! Since I started the article, a number of very intelligent and thoughtful people have visited and added to it, and the article has changed profoundly since I made the initial posting. For a topic as relatively narrow as this one, its hard to imagine expanding it [too] much more from the point it has reached at this point. That said, we haven't reached the featured article status yet by a long shot - though I believe that we certainly have reached the good article criteria. I know my vote doesn't count, so I vote for world peace ;) Spiral5800 ( talk) 11:13, 15 June 2010 (UTC)
Hi there. I see there's a note above that 'an editor' has agreed to review the article, but since there's no sign of any activity on that front in the three weeks or so since that message was left, I'm going to disregard it and carry out a full review. If there's any objection to that approach, just let me know and I'll leave the article alone. Cheers. 4u1e ( talk) 13:06, 7 July 2010 (UTC)
As regular editors of this page have not acted on the copyright violations identified above, I've removed the following problem items:
This section doesn't deliver what it promises, an explanation of why beta angle is importance in space flight. It expresses some relationships between what beta angle existed on the ISS and what the Space Shuttle was required to do but offers no clue as to why that's the case. Why does the orbiter go into "rotisserie" mode if the beta angle is great than 60 degress? Why can the orbiter only launch to the ISS during a beta cutout? Does flying in high beta angle turn astronauts into zombies? Does it cause moss to grow in the thruster nozzles? After reading I know beta angle is important but have no idea why. I assume it has something to do with temperature or light? 72.64.98.101 Steevithak ( talk) 15:51, 21 December 2014 (UTC)
It is requested that an orbital mechanics diagram or diagrams be
included in this article to
improve its quality. Specific illustrations, plots or diagrams can be requested at the
Graphic Lab. For more information, refer to discussion on this page and/or the listing at Wikipedia:Requested images. |
The current diagram is not clear; the sun vector appears to be in the orbital plane. — Swpb talk 19:36, 13 November 2015 (UTC)
There's an alternative formulation , which can be found in the Spacecraft Thermal Control Handbook, Volume 1, page 40;
They're just different. The formula is STCH is in terms of solar RA and DEC (in the equatorial coordinate system) as opposed to the given formula, which is in solar longitude (in the ecliptic.)
β(t) = arcsin ( cos ( δS (t) ) · sin ( i ) · sin ( Ω(t) - ΩS (t) ) + sin ( δ S (t) ) · cos ( i ) )
δS = solar declination ΩS(t) = solar right ascension
This is simpler in some ways, but they are equivalent.