เหตุการณ์ใน-นอกโลก VS ภัยธรรมชาติ และupdate พายุสุริยะ

ยินดีจ้า...

 

Coronal Holes: 01 Feb 13



Solar wind flowing from these coronal holes should reach Earth between Feb. 4th and 6th. Credit: SDO/AIA.

ลมสุริยะจากโคโรน่าโฮลพวกนี้ จะมาถึงโลกประมาณวันที่ 4 และ 6 กุมภาพันธ์ 2013

 

เมื่อวานมีสัญญาณดาวเทียมขาดหายหลายอันเหมือนกัน

 

NOTE: forecasts are valid from 1230UT, 01 Feb 2013 until 03 Feb 2013
PREDICTIONS FOR 01 Feb 2013 10CM FLUX: 099 / AP: 003
PREDICTIONS FOR 02 Feb 2013 10CM FLUX: 098 / AP: 004
PREDICTIONS FOR 03 Feb 2013 10CM FLUX: 097 / AP: 015

COMMENT: Solar flaring activity remains low and the solar wind isquiet. Two filament eruptions were observed on the east side on the solar disk yesterday. SDO/AIA images show a filament erupting in the southeast around 06:00 UT and one in the northeast around 16:30 UT. The





CACTus halo CME alert sent at 07:26 UT today concerned the associated CMEs. While the second CME was not earth-directed, we expect a possible glancing blow from the first one early on February 3. Geomagnetic conditions are very quiet. We expect possible unsettled to active
conditions (K <= 4) on February 3 due to the possible arrival of the CME mentioned above and a coronal hole that may become geo-effective. The SIDC All Quiet alert remains valid for now.

 

COMET LEMMON UPDATE - สว่างขึ้นมากกว่าที่เคยคาดไว้

COMET LEMMON UPDATE: Glowing much brighter than expected, Comet Lemmon (C/2012 F6) is gliding through the skies of the southern hemisphere about 92 million miles (0.99 AU) from Earth. Amateur astronomer Rolf Wahl Olsen sends this picture from his backyard in Auckland, New Zealand:



"I took this image of Comet Lemmon on the 28th of January," says Olsen. "It has become quite bright now and has also grown a beautiful tail."

Discovered on March 23rd 2012 by the Mount Lemmon survey in Arizona, Comet Lemmon is on an elliptical orbit with a period of almost 11,000 years. This is its first visit to the inner solar system in a very long time. The comet is brightening as it approaches the sun; light curves suggest that it will reach 2nd or 3rd magnitude, similar to the stars in the Big Dipper, in late March when it approaches the sun at about the same distance as Venus (0.7 AU).

At the moment, the comet is glowing like a 7th magnitude star, just below the limit of naked-eye visibility. To capture the faint details of the comet's filamentary tail, Olsen used a 10-inch telescope, a sensitive CCD camera, and an exposure time of 1 hour 17 minutes. Complete photo details are given here.

Lemmon's green color comes from the gases that make up its coma. Jets spewing from the comet's nucleus contain cyanogen (CN: a poisonous gas found in many comets) and diatomic carbon (C2). Both substances glow green when illuminated by sunlight in the near-vacuum of space.

Northern hemisphere observers will get their first good look at the comet in early April; until then it is a target exclusively for astronomers in the southern hemisphere.

SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids

 

Today, 3 solar flares were observed:

Active region Begin, UT Max, UT End, UT
Flare of class C2.2 1667 02:16:00 02:24:00 02:29:00
Flare of class C8.4 1667 05:56:00 06:10:00 06:15:00
Flare of class C1.5 1667 07:43:00 08:18:00 08:53:00

Solar flares yesterday
Yesterday, 2 solar flares were observed:

Active region Begin, UT Max, UT End, UT
Flare of class C1.2 1665 05:02:00 05:11:00 05:15:00
Flare of class C2.9 1667 19:48:00 19:58:00 20:07:00


Sunspots and active regions
The following regions with sunspots can be now observed on the Sun's surface

№ 1662 N27 W79 02 Hsx 0020 02 318 Alpha

№ 1663 S09 W65 01 Axx 0000 01 304 Alpha

№ 1665 N10 W04 05 Cso 0190 04 242 Beta

№ 1667 N22 E42 14 Dsi 0160 05 197 Beta

№ 1668 N12 W16 07 Dao 0030 04 255 Beta

Coordinates and other characteristics of active regions are issued for February 04, 2013 00:31 UT

 

3 กุมภาพันธ์ เกิดปฏิกริยาดวงอาทิตย์ ในเวลา 9:55 UTC ส่งพลังงานความเร็วสูงออกไปทางทิศเหนือของโลก และพบปฏิกริยา X-ray ที่มากกว่าปกติ คาดว่าพลังงานดังกล่าวจะส่งผลกระทบต่อโลกในระหว่างวันที่ 5-7 กุมภาพันธ์

http://www.truth4thai.org/planetaryalignment/Feb_2013

 

CORONAL HOLE: A vast hole in the sun's atmosphere--a "coronal hole"--has opened up in the sun's northern hemisphere, and it is spewing a stream of solar wind into space. NASA's Solar Dynamics Observatory photographed the UV-dark gap during the early hours of Feb. 5th:



Coronal holes are places where the sun's magnetic field opens up and allows solar wind to escape. Material flowing from this particular coronal hole should reach Earth's orbit on Feb. 7-8. Because of the opening's high northern latitude, the solar wind stream will not hit Earth head on; instead it could be a glancing blow. Even so, the impact could spark polar auroras later this week.

SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids

 

EARTH-DIRECTED ERUPTION? Sunspot AR1667 has just unleashed a C9-class solar flare that might have hurled a CME toward Earth. Stay tuned for updates.



Sunspots and active regions
The following regions with sunspots can be now observed on the Sun's surface

№ 1665 N10 W18 02 Hsx 0170 03 242 Alpha

№ 1667 N22 E28 08 Dso 0090 06 197 Beta

Coordinates and other characteristics of active regions are issued for February 05, 2013 00:31 UT