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THEO-007
sage
Reged: 02/03/08
Posts: 306
Loc: GREECE
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Today we have a great solar active regions synod of the last month.
An AR synod on the sun surface. A GREAT PHAINOMENON.
Oversize image removed by moderator. Please read your Private Messages. We only allow images up to 800X800 pixels. This one exceeded that.
Edited by Don W (10/24/09 04:14 PM)
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robert_arnold
Pooh-Bah
Reged: 11/08/05
Posts: 1416
Loc: Isle of Skye, Scotland
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Very nicely displayed infomation.
Robert
--------------------
ED80 ED100 Helios-120+105-ERF PST SM40 DMK31AF03 CaK-B600 LS75F/B1200
www.robertarnold.co.uk
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swisswalter
sage
Reged: 03/29/09
Posts: 414
Loc: Eastern-Switzerland
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hi theo
a nice get to gether. what sort of picture is that? taken with? technique?
walter
walter
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only dust in the wind, TAK on GM8, Lunt 60, DMK31,still greenhorn, but as a golfer used to be humble
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darkstar528
Postmaster
Reged: 03/06/07
Posts: 6800
Loc: Hodgenville, Kentucky, USA
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Love the presentation!!!!!!!
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Blue skies,
Stephen "Darkstar" Ames
PST(#96038), VIXEN 8-24mm,CEMAX 2x Barlow, Thousand Oaks White Light Filter and a Meade Elec EP
CFI, CFII, MEI, working on EIEIO!
BAA Member
My solar site:
http://seemysunspot.com
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Mogster
sage
Reged: 03/14/04
Posts: 337
Loc: Manchester, England
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Thanks, important info well presented.
This new AR is much closer to the equator than the others, irc AR's on the solar equator tend to occur once the solar cycle has matured. What that says about the current state of SC24 is anyone guess.
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CPC 9.25, Orion 127 Mak, WO Zenithstar 2 80APO, Coronado PST, Pentax 12X50 WP
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David Knisely
Postmaster
Reged: 04/19/04
Posts: 8289
Loc: Beatrice, Nebraska
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Quote:
hi theo
a nice get to gether. what sort of picture is that? taken with? technique?
walter
walter
This is a magnetogram done at some professional observatory that has equipment capable of measuring the small-scale solar magnetic field orientation and strength. You can find such plots on the NASA Solar Monitor:
http://solarmonitor.org/index.php
It is a useful way to determine what an active region is going to do. The larger more diffuse areas of bipolar flux often mark the locations of large quiet region filaments. The smaller scale higher contrast features are active regions on the sun. The dark represents one magnetic polarity while the lighter areas represent the opposite polarity. Clear skies to you.
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David W. Knisely
Hyde Memorial Observatory
http://www.hydeobservatory.info
Prairie Astronomy Club
http://www.prairieastronomyclub.org
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David Knisely
Postmaster
Reged: 04/19/04
Posts: 8289
Loc: Beatrice, Nebraska
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The area marked as "Former Sunspot/Region 1026" is actually the location of a large quiet region filament. You will often see such filaments form at the location of the "neutral line" dividing one large area of magnetic polarity from one of opposite polarity. When two large but patchy areas of opposite polarity are seen on the disk away from any active regions, chances are there is (or was) a filament there. However, one needs to understand that there is no such thing as a "Sunspot 1029". There are *multiple* sunspots in the active region NOAA 11029, so there is no way to assign some specific number to any given spot. Clear skies to you.
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David W. Knisely
Hyde Memorial Observatory
http://www.hydeobservatory.info
Prairie Astronomy Club
http://www.prairieastronomyclub.org
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David Knisely
Postmaster
Reged: 04/19/04
Posts: 8289
Loc: Beatrice, Nebraska
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Quote:
Thanks, important info well presented.
This new AR is much closer to the equator than the others, irc AR's on the solar equator tend to occur once the solar cycle has matured. What that says about the current state of SC24 is anyone guess.
What needs to be paid attention to is both the latitude and the polarity orientation, as the areas where active regions are now forming is starting to expand. Eventually, it will form a broad belt that is 20 to 35 solar latitude degrees in width. The new active region's polarity orientation is the same as the other active regions from the current cycle (24), so it is a new cycle region. Clear skies to you.
--------------------
David W. Knisely
Hyde Memorial Observatory
http://www.hydeobservatory.info
Prairie Astronomy Club
http://www.prairieastronomyclub.org
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swisswalter
sage
Reged: 03/29/09
Posts: 414
Loc: Eastern-Switzerland
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hi david
thank you for your information and explanation. very intersting indeed. I have first to digest it, if I can at all.
always cs
walter
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only dust in the wind, TAK on GM8, Lunt 60, DMK31,still greenhorn, but as a golfer used to be humble
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