| Science Forum Index » Astro Forum » Kepler Mission: why no near planets yet ?... |
|
Page 1 of 1 |
|
| Author |
Message |
| ivk... |
 Posted: Tue Oct 06, 2009 3:07 pm |
|
|
|
Guest
|
I think Kepler has downloaded about 5 months of observations. This
would mean that they should've dicovered planets with rotation period
of < 1.5 momths (about half of Mercury's), if there were any new ones.
Does it mean that there actually very few extrasolar planets out
there ?
Please note that planets with short rotation period are more likely to
have their orbital plane inclined in the right way for Kepler to
discover them than planets with longer periods. So it seems that it
will be even less likely that they will discover any planets in the
habitable zone, now that they have not discovered any planets with <
1.5 month period. Does it sound right ? |
|
|
| Back to top |
|
|
|
| Androcles... |
| Posted: Tue Oct 06, 2009 8:45 pm |
|
|
|
Guest
|
"ivk" <ivk2000 at (no spam) hotmail.com> wrote in message
news:3e74e7de-6ab5-4a51-a9fb-9a3e32b76281 at (no spam) z4g2000prh.googlegroups.com...
[quote:b4ec589d8d]I think Kepler has downloaded about 5 months of observations. This
would mean that they should've dicovered planets with rotation period
of < 1.5 momths (about half of Mercury's), if there were any new ones.
Does it mean that there actually very few extrasolar planets out
there ?
Please note that planets with short rotation period are more likely to
have their orbital plane inclined in the right way for Kepler to
discover them than planets with longer periods. So it seems that it
will be even less likely that they will discover any planets in the
habitable zone, now that they have not discovered any planets with
1.5 month period. Does it sound right ?
[/quote:b4ec589d8d]
Algol's planet "Androcles" has a period of 70 hours. It's beyond the range
of Kepler, though. Besides, do you expect a result for just one orbit
if other planets are involved? That would be magic.
http://www.androcles01.pwp.blueyonder.co.uk/Algol/Algol.htm
--Androcles |
|
|
| Back to top |
|
|
|
| N:dlzc D:aol T:com (dlzc)... |
| Posted: Tue Oct 06, 2009 9:28 pm |
|
|
|
Guest
|
Dear ivk:
"ivk" <ivk2000 at (no spam) hotmail.com> wrote in message
news:3e74e7de-6ab5-4a51-a9fb-9a3e32b76281 at (no spam) z4g2000prh.googlegroups.com...
[quote:0d6424ac3b]I think Kepler has downloaded about 5 months of
observations. This would mean that they should've
dicovered planets with rotation period of < 1.5
momths (about half of Mercury's), if there were any
new ones.
[/quote:0d6424ac3b]
Why do you think that? Don't you believe that it takes analysis
of the data, and not just reams of data? Do you think one small
area of sky accounts for the whole sky?
[quote:0d6424ac3b]Does it mean that there actually very few extrasolar
planets out there ?
[/quote:0d6424ac3b]
Doesn't follow.
[quote:0d6424ac3b]Please note that planets with short rotation period
are more likely to have their orbital plane inclined in
the right way for Kepler to discover them than planets
with longer periods. So it seems that it will be even
less likely that they will discover any planets in the
habitable zone, now that they have not discovered
any planets with < 1.5 month period. Does it sound
right ?
[/quote:0d6424ac3b]
They have repeated finding known exoplanets, and returned
additional depth of data on those. I think they are just now
collecting data in earnest, if they can keep the computer from
shutting down...
David A. Smith |
|
|
| Back to top |
|
|
|
| N:dlzc D:aol T:com (dlzc)... |
| Posted: Tue Oct 06, 2009 10:09 pm |
|
|
|
Guest
|
"ivk" <ivk2000 at (no spam) hotmail.com> wrote in message
news:3e74e7de-6ab5-4a51-a9fb-9a3e32b76281 at (no spam) z4g2000prh.googlegroups.com...
[quote:35952c8f5f]I think Kepler has downloaded about 5 months of
observations.
[/quote:35952c8f5f]
http://groups.google.com/group/sci.space.news/msg/772c6b2d9d23b911
.... so we'll know more tomorrow.
David A. Smith |
|
|
| Back to top |
|
|
|
| Yousuf Khan... |
| Posted: Tue Oct 06, 2009 10:40 pm |
|
|
|
Guest
|
N:dlzc D:aol T:com (dlzc) wrote:
[quote:ba00438f27]"ivk" <ivk2000 at (no spam) hotmail.com> wrote in message
news:3e74e7de-6ab5-4a51-a9fb-9a3e32b76281 at (no spam) z4g2000prh.googlegroups.com...
I think Kepler has downloaded about 5 months of
observations.
http://groups.google.com/group/sci.space.news/msg/772c6b2d9d23b911
... so we'll know more tomorrow.
David A. Smith
[/quote:ba00438f27]
"WASHINGTON -- NASA will hold a media briefing on Thursday, Aug. 6, at
2 p.m. EDT, to discuss early science results of the Kepler mission.
Kepler is the first spacecraft with the ability to find Earth-size
planets orbiting stars like our sun in a zone where liquid water
could exist."
Where does the press release talk about Oct 7th, 2009?
Yousuf Khan |
|
|
| Back to top |
|
|
|
| dlzc... |
| Posted: Wed Oct 07, 2009 4:02 am |
|
|
|
Guest
|
Dear Yousuf Khan:
On Oct 6, 9:40 pm, Yousuf Khan <bbb... at (no spam) spammenot.yahoo.com> wrote:
[quote:be5d3e779b]N:dlzcD:aol T:com (dlzc) wrote:
"ivk" <ivk2... at (no spam) hotmail.com> wrote in message
news:3e74e7de-6ab5-4a51-a9fb-9a3e32b76281 at (no spam) z4g2000prh.googlegroups.com...
I think Kepler has downloaded about 5 months of
observations.
http://groups.google.com/group/sci.space.news/msg/772c6b2d9d23b911
... so we'll know more tomorrow.
"WASHINGTON -- NASA will hold a media briefing
on Thursday, Aug. 6, at 2 p.m. EDT, to discuss
early science results of the Kepler mission.
Kepler is the first spacecraft with the ability to find
Earth-size planets orbiting stars like our sun in a
zone where liquid water could exist."
Where does the press release talk about Oct 7th,
2009?
[/quote:be5d3e779b]
Yes, it could be today (Wed 6th), tomorrow (Thu 7th), or next year
when Oct 7th falls on a Thursday...
David A. Smith |
|
|
| Back to top |
|
|
|
| dlzc... |
| Posted: Wed Oct 07, 2009 12:46 pm |
|
|
|
Guest
|
On Oct 6, 9:40 pm, Yousuf Khan <bbb... at (no spam) spammenot.yahoo.com> wrote:
[quote:f020de9d10]N:dlzcD:aol T:com (dlzc) wrote:
"ivk" <ivk2... at (no spam) hotmail.com> wrote in message
news:3e74e7de-6ab5-4a51-a9fb-9a3e32b76281 at (no spam) z4g2000prh.googlegroups.com....
I think Kepler has downloaded about 5 months of
observations.
http://groups.google.com/group/sci.space.news/msg/772c6b2d9d23b911
... so we'll know more tomorrow.
"WASHINGTON -- NASA will hold a media briefing
on Thursday, Aug. 6, at 2 p.m. EDT, to discuss
early science results of the Kepler mission.
Kepler is the first spacecraft with the ability to find
Earth-size planets orbiting stars like our sun in a
zone where liquid water could exist."
Where does the press release talk about Oct 7th,
2009?
Yes, it could be today (Wed 6th), tomorrow (Thu 7th),
or next year when [Oct 6th] falls on a Thursday...
[/quote:f020de9d10]
Gaaa....
David A. Smith |
|
|
| Back to top |
|
|
|
| ivk... |
| Posted: Wed Oct 07, 2009 1:18 pm |
|
|
|
Guest
|
I am still looking for somebody to answer the original question  Let
me try to formalize it.
There were no reports of any new extrasolar planets found in about 5
months of Kepler's operations; does it mean that they did not find any
planet with a period < 1.5 months and at least Earth size (or
bigger) ? Or it is just that they are waiting for some other
confirmations, in addition to simple occlusions that are obeservable
from Kepler ? |
|
|
| Back to top |
|
|
|
| Greg Hennessy... |
| Posted: Wed Oct 07, 2009 6:52 pm |
|
|
|
Guest
|
On 2009-10-07, ivk <ivk2000 at (no spam) hotmail.com> wrote:
[quote:587cf510d3]There were no reports of any new extrasolar planets found in about 5
months of Kepler's operations; does it mean that they did not find any
planet with a period < 1.5 months and at least Earth size (or
bigger) ?
[/quote:587cf510d3]
No, it does not mean that.
They are surely taking and reducing data, and waiting to understand
things before publishing.
I expect a flurry of results next January at the AAS meeting. |
|
|
| Back to top |
|
|
|
| Androcles... |
| Posted: Wed Oct 07, 2009 10:14 pm |
|
|
|
Guest
|
"Greg Hennessy" <greg.hennessy at (no spam) cox.net> wrote in message
news:6Jazm.59539$j34.55820 at (no spam) newsfe01.iad...
[quote:8f5d01b1e4]On 2009-10-07, ivk <ivk2000 at (no spam) hotmail.com> wrote:
There were no reports of any new extrasolar planets found in about 5
months of Kepler's operations; does it mean that they did not find any
planet with a period < 1.5 months and at least Earth size (or
bigger) ?
No, it does not mean that.
They are surely taking and reducing data, and waiting to understand
things before publishing.
I expect a flurry of results next January at the AAS meeting.
[/quote:8f5d01b1e4]
"They" is a computer on board the space telescope called "Kepler".
"They" will not be attending any AAS meeting.
http://kepler.nasa.gov/about/news.html |
|
|
| Back to top |
|
|
|
| YKhan... |
| Posted: Thu Oct 08, 2009 4:49 am |
|
|
|
Guest
|
On Oct 8, 12:14 am, "Androcles" <Headmas... at (no spam) Hogwarts.physics_o> wrote:
[quote:6ec709a648]"Greg Hennessy" <greg.henne... at (no spam) cox.net> wrote in message
They are surely taking and reducing data, and waiting to understand
things before publishing.
I expect a flurry of results next January at the AAS meeting.
"They" is a computer on board the space telescope called "Kepler".
"They" will not be attending any AAS meeting.
http://kepler.nasa.gov/about/news.html
[/quote:6ec709a648]
I doubt the computer aboard the Kepler does anything more than
compress and store the data for transmission back to the computers on
Earth.
Yousuf Khan |
|
|
| Back to top |
|
|
|
| Androcles... |
| Posted: Thu Oct 08, 2009 9:22 am |
|
|
|
Guest
|
"YKhan" <yjkhan at (no spam) gmail.com> wrote in message
news:6da8de8b-f302-4860-b4df-27e0b97b69b7 at (no spam) p23g2000vbl.googlegroups.com...
On Oct 8, 12:14 am, "Androcles" <Headmas... at (no spam) Hogwarts.physics_o> wrote:
[quote:ed174ee9d2]"Greg Hennessy" <greg.henne... at (no spam) cox.net> wrote in message
They are surely taking and reducing data, and waiting to understand
things before publishing.
I expect a flurry of results next January at the AAS meeting.
"They" is a computer on board the space telescope called "Kepler".
"They" will not be attending any AAS meeting.
http://kepler.nasa.gov/about/news.html
[/quote:ed174ee9d2]
I doubt the computer aboard the Kepler does anything more than
compress and store the data for transmission back to the computers on
Earth.
Yousuf Khan
=================================================
Ok, then "they" is a network of computers.
"They" will not be attending any AAS meeting.
I doubt the brain aboard the Yousuf Khan does anything more than
compress and store idiot data for transmission back to the computers on
Usenet. |
|
|
| Back to top |
|
|
|
| YKhan... |
| Posted: Thu Oct 08, 2009 10:58 pm |
|
|
|
Guest
|
On Oct 8, 11:22 am, "Androcles" <Headmas... at (no spam) Hogwarts.physics_o> wrote:
[quote:f8539ddb9c]Ok, then "they" is a network of computers.
"They" will not be attending any AAS meeting.
[/quote:f8539ddb9c]
But these computers biological servants, otherwise known as staff
astrophysicists, will be attending these meetings, and they will bring
the words of wisdom from their computer overlords.
[quote:f8539ddb9c]I doubt the brain aboard the Yousuf Khan does anything more than
compress and store idiot data for transmission back to the computers on
Usenet.
[/quote:f8539ddb9c]
So clever. Your computer overlord must be proud to have a pet such as
you.
Yousuf Khan |
|
|
| Back to top |
|
|
|
| Androcles... |
| Posted: Fri Oct 09, 2009 6:22 am |
|
|
|
Guest
|
"YKhan" <yjkhan at (no spam) gmail.com> wrote in message
news:11ce1dfe-6056-4867-9fec-b1da4a1ae68a at (no spam) k33g2000yqa.googlegroups.com...
On Oct 8, 11:22 am, "Androcles" <Headmas... at (no spam) Hogwarts.physics_o> wrote:
[quote:972eeda517]Ok, then "they" is a network of computers.
"They" will not be attending any AAS meeting.
[/quote:972eeda517]
But these computers
===========================================
Did you snip something I wrote?
Yes, you did... I'm pleased to return the courtesy.
Now... what the fuck were you mumbling about, cretin? |
|
|
| Back to top |
|
|
|
|
