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Pencerapan Samawi => Kalendar Eksplorasi Samawi => Topic started by: botok on February 24, 2006, 09:39:59 PM



Title: Komet C/2006 A1 Pojmanski
Post by: botok on February 24, 2006, 09:39:59 PM
Sebuah lagi komet menghampiri matahari dan sedang berada terang dilangit timur pada awal pagi (mengikut laporan pemerhati sehingga magnitude 5.5!).

Komet ini dijumpai oleh Southern Survey ASAS dan mempunyai core yang kecil dan padat berukuran angggaran 4 arcminit. Komet ini akan menghampiri matahari pada jarak terdekat pada 0.6 AU pada hujung bulan Februari ini dan dapat dicerap sehingga bulan Mac.

Simulasi orbit komet C/2006 A1 Pojmanski
(http://img526.imageshack.us/img526/7784/orbit1da.jpg)

Cekupan dari Starry Night
(http://img504.imageshack.us/img504/1899/planetarium9wb.jpg)

Link ke laman web berkenaan dengan komet C/2006 A1 Pojmanski
http://www.ast.cam.ac.uk/~jds/ (http://www.ast.cam.ac.uk/~jds/)
http://www.astrouw.edu.pl/~gp/asas/asas.html (http://www.astrouw.edu.pl/~gp/asas/asas.html)
http://cfa-www.harvard.edu/iau/Ephemerides/Comets/2006A1.html (http://cfa-www.harvard.edu/iau/Ephemerides/Comets/2006A1.html)

Tetapi malangnya kedudukan komet ini agak rendah (sekitar 20 darjah) dari ufuk timur, tetapi mana tau nasib kita agak baik dgn cuaca yg mengizinkan dapat juga mengintai komet ini. InsyaAllah.


Title: Re: Komet C/2006 A1 Pojmanski
Post by: shahgazer on February 25, 2006, 01:18:11 PM
terima kasih botok kerana mengingatkan kita semua pasal komet ini!  :-D


Title: Re: Komet C/2006 A1 Pojmanski
Post by: bentze on February 25, 2006, 04:52:08 PM
woohoo!

Here comes my first comet


Title: Re: Komet C/2006 A1 Pojmanski
Post by: botok on February 26, 2006, 08:21:37 AM
Baru sahaja lepas mencerap awal pagi tadi. Komet C/2006 A1 berada lebih kurang 2 darjah ke kiri bintang Dabih. Dari kawasan rumah saya di Alor Setar dengan mata kasar memang tak dapat nampak, tetapi mengunakan binokular, nampak titik kelabu koma komet tersebut. Mengikut pemerhatian pemerhati yang lain yg mengatakan komet ini ermagnitud 5.5, saya bandingkan dengan objek berdekatkan Sagittarius Cluster (M22) yang bermagnitud 6.5 serasa saya komet ini lebih kelam. Tetapi mungkin juga disebabkan oleh altitud komet ini yg rendah (gangguan atmosfera) dan juga langit sebelah timur saya yang agak tercemar dgn cahaya dari bandar Alor Setar. :)

Apa yang menarik semasa mencerap lebih kurang 2-3 buah satelit melintas langit timur. :)

Esok insyaAllah try setup teleskop pula, tadi tak sempat pasal terlewat pula bangkit. :P


Title: Re: Komet C/2006 A1 Pojmanski
Post by: kamayok3 on February 27, 2006, 09:06:59 AM
Hi,

Lama sudah tak jadi comet hunter....sekarang adanya peluang yang baik untuk melihat.

Regards,

Tommy


Title: Re: Komet C/2006 A1 Pojmanski
Post by: bentze on February 27, 2006, 10:03:33 PM
The weather around my area is horrible, the air is so moist that it keeps fogging up my viewfinder and wetting the maps. Besides that, its also very cloudy. Hopefully, I'll still get to see it.

Here is a map for your reference. I'm going to use the starhopping method, since its already so hard to get started.

(http://www.freewebtown.com/fishscales/2006_A1.gif)


Title: Re: Komet C/2006 A1 Pojmanski
Post by: kamayok3 on February 28, 2006, 12:06:48 AM
Hi Bentze,

Can you introduce yourself to everyone in the list? You seems like an advanced amateur astronomer. I really interested want to know more about you.....

Regards,

Tommy


Title: Re: Komet C/2006 A1 Pojmanski
Post by: shahgazer on February 28, 2006, 10:24:07 AM
Hi,

Lama sudah tak jadi comet hunter....sekarang adanya peluang yang baik untuk melihat.

Regards,

Tommy

just when we plan to do some serius hunt on comet pojmanski, the weather is always cloudy in the morning!  :-o

anyone from KL has any luck?

-Shah-


Title: Re: Komet C/2006 A1 Pojmanski
Post by: kamayok3 on February 28, 2006, 11:18:51 AM
tak de le.....MAcam mana dengan u guys?

Tommy


Title: Re: Komet C/2006 A1 Pojmanski
Post by: botok on February 28, 2006, 10:03:53 PM
Nampaknya saya la yang lucky fellow kat sini... :)

Dah 3 hari berturut-turut berpeluang mengintai C/2006 Pojmanski ni. Tetapi jika dibandingkan dengan C/2004 Q2 Macholtz dulu rasa lebih baik kerana berada pada altitud yang lebih tinggi berbanding dengan Pojmanski yang rendah dan muncul hampir dengan terbit Matahari. Yang sama ialah warna kehijauan koma komet tersebut.

Tapi rasanya my luck would just run out tonight... tadi dah nampak kepul-kepulan awan berarak dilangit Alor Setar.  :cry:


Title: Re: Komet C/2006 A1 Pojmanski
Post by: bentze on February 28, 2006, 11:16:26 PM
I had some luck this morning. I starhopped to Dabih, as it did not seem very bright in the viewfinder. I started looking around.

After awhile, I found a slightly bright-roundish blob. I checked my map, and found that the area on the map that I had marked had no comet in it. I then realised I had marked the location of the comet for the 1th of March, and not the 28th(today). The mistake was only a few degrees off-course.

I found the experience very satsfying, as I had put alot effort into finding he comet. Problems like moisture in the air and clouds made it a bit harder to find the relatively bright comet.

However, I think I was a bit lucky to have found it beacuse I've heard that there have been many clouds in other areas
(that have probably been causing some serious banjir).

By the way, if you can't see the comet for any reason, you can always turn your scope towards Sagitarius. You'll keep yourself busy with nebulas, star clusters...


Title: Re: Komet C/2006 A1 Pojmanski
Post by: bentze on February 28, 2006, 11:18:57 PM
Hi Bentze,

Can you introduce yourself to everyone in the list? You seems like an advanced amateur astronomer. I really interested want to know more about you.....

Regards,

Tommy

I'll explain later, must go to sleep to see more of the comet.


Title: Re: Komet C/2006 A1 Pojmanski
Post by: kamayok3 on February 28, 2006, 11:27:25 PM
Hahaha....

Belum ada peluang nak tengok lagi. Terlalu letih! :)

Regards,

Tommy


Title: Re: Komet C/2006 A1 Pojmanski
Post by: botok on March 01, 2006, 08:09:59 AM
Nampaknya pagi ini pun nasib saya masih baik :)

Kali ni sempat ambil gambar (bangkit awal sikit hari ni). C/2006 A1 Pojmanski sudah bergerak ke arah utara (dari kedudukan sebelah kanan bintang dabih sekarang sudah berada di kiri bintang dabih) dan kedudukan altitud juga semakin tinggi.

Menggunakan kamera digital Canon Ixus-i, ISO 200, masa dedahan 10 saat.
Proses imej "stack & align" dalam IRIS dan noise filtering dalam NEAT.

(http://img153.imageshack.us/img153/5670/c2006800filtered9mg.jpg)

Bonus:
Sempat juga tangkap Jupiter dan kedudukan Jovian moons nya. Gambar sedikit kabur tangan mengeletar oleh kerana terlebih kopi. :P

(http://img234.imageshack.us/img234/9422/jupiter6yc.jpg)


Title: Re: Komet C/2006 A1 Pojmanski
Post by: bentze on March 01, 2006, 10:19:43 PM
Has anyone with a big scope here managed to see the comet's tail?


Title: Re: Komet C/2006 A1 Pojmanski
Post by: botok on March 02, 2006, 07:45:58 AM
bentze, harap2 cuaca kat Penang ok, boleh kita tgk hasil dari CK. Saya pun tak sabar nak tgk. Lately langit kat northern parts memang baik terutama pada awal pagi. So hopefully CK ada masa terluang (maybe busy persiapan untuk USM NATIONAL ASTRONOMY CONVENTION).


Title: Re: Komet C/2006 A1 Pojmanski
Post by: kamayok3 on March 02, 2006, 09:19:10 AM
Hi,

Not really need a big scope to look at the tail. Just consider about the sky condition, air....most suitable place really dark place.

If we can travel far enough to a dark place....6-8inch newtonian shouldn't be a problem to get it.

Regards,

Tommy


Title: Re: Komet C/2006 A1 Pojmanski
Post by: shahgazer on March 02, 2006, 09:27:42 AM
got an idea lah, why not on the early morning of Saturday, during the convention, we go off somewhere dark for some short observation on pojmanski? tapi saya tak boleh lepak lama-lama lah, pasal kena prepare untuk ceramah pukul 9 tu!!  :-D


Title: Re: Komet C/2006 A1 Pojmanski
Post by: kamayok3 on March 02, 2006, 11:09:02 AM
cannot lar...this is only a short period brightness comet. I believe it will be more dimmer when we are trying to look at it during the convention time...

It reach mag 7.2 when the time we are at Penang. Too dim for visual...

hahaha.....CK also lazy to wake up and catch this comet. :) Me too....

Tommy


Title: Re: Komet C/2006 A1 Pojmanski
Post by: perseid on March 02, 2006, 11:39:08 AM
Cuaca kat Penang awal pagi bagusssss.... tapi I malas nak bangun. Nak tengok pun kena pergi tepi pantai, sebab altitude komet ini sangat rendah.
Lagipun, komet ini agak malap. Macam botok cakap, Comet Machholz lebih sesuai untuk pencerapan sebab berada kat lokasi lebih tinggi di langit, walaupun kecerahan agak sama.
Besok pagi, kalau cerah, mungkin nak cuba ambik gambar. Tapi doesn't look promising-lah.
Jumpa you guys kat convention.


Title: Re: Komet C/2006 A1 Pojmanski
Post by: kamayok3 on March 02, 2006, 12:01:34 PM
:)

Tommy


Title: Re: Komet C/2006 A1 Pojmanski
Post by: bentze on March 02, 2006, 08:01:21 PM
By the way, I am not going to the USM Astronomy Convention, though I would like too. Has anyone been able to see anything besides a blob ?


Title: Re: Komet C/2006 A1 Pojmanski
Post by: nursyah on December 23, 2008, 11:02:26 PM
hmm, last reply.. 2nd march 2006.

Xde peristiwa terbaru ke ni?..
 :roll: