Hale Bopp: el cometa del segle!


Observacions recents:


From: Mark Wagner mgw@resource-intl.com
Date: Mon, 31 Mar 1997 15:06:44 -0800 (PST)
Subject: Comet Crazies

Mark Wagner
The Astronomy Connection (TAC)


From: Tony Cecce, Corning, NY CECCE_AJ@CORNING.COM
Date: Fri, 28 Mar 1997 11:16:40 -0500 (EST)
Subject: Hale-Bopp ion tail

Tony Cecce,
Corning, NY


From: David Emigh emigh@APOLLO.COMMNET.EDU
Date: Thu, 27 Mar 1997 12:43:18 -0500
Subject: Ephemerides for the UFO following Hale-Bopp?

David Emigh
Assoc. Prof. of Natural Sciences QVCTC


From: Brian Halbrook (bhalbroo@mich.com)
Date: Mon, 24 Mar 1997 12:31:28 -0400
Subject: Un eclipse perfecte i un cometa meravellós


135mm f/2.8 lens.
Kodak PJM640 film.
7 minutes exp.


March 23, 1997
(evening)

  • "Visc a l'estat de Michigan, a la vora sud del llac Superior... Encara ens sembla que estem en ple hivern, amb 90 cm de neu a tot arreu."
  • "El nostre objectiu era fotografiar el cometa a 4,5 graus d'alçada sobre la capa de glaç del llac Superior durant l'eclipse de Lluna."
  • "Quan ho vam tenir tot preparat encara mancava una hora pel moment crític, però ja teniem les mans i els peus glaçats. Vam correr cap a la camioneta, la vam engegar i vam regenerar els nostres cosos amb l'escalfor del motor, el café calent i la xocolata."
  • "A través de les finestretes podiem seguir l'eclipse. Quan mancava prop d'una hora per la fase central vam decidir sortir fora i plantar cara al fred. Llavors vaig comprovar que el telescopi estava massa alt per poguer mirar per els visors de les càmeres que haviem muntat a sobre. Vam intentar escurçar una de les potes, però havia quedat atrancada pel fred, i vaig tenir que estirar les altres dues."
  • "El canvi va ser notable durant la fase central de l'eclipse: es veien MOLTES més estrelles. Es podien distingir 10 graus de la cua de pols i 12 a 14 graus de la cua iònica del cometa, malgrat la poca alçada sobre l'horitzó!"

    (NOTE... For those of you reading this outside of my local region... I live on the south shore of Lake Superior in the Upper Peninsula of the State of Michigan, USA. We have currently broken our record for snowfall.... we have over 36-inches of snow on the ground in most places. It basically still looks and feels like deep winter here.)

    Mike Beauchamp and I packed up his van and headed east last night (3-23-97) with a thermos of coffee and couple of bags of Hershey's Kisses....(the almond ones are best by the way...)

    Our mission? To photograph a comet 4.5 degrees above the icepack of Lake Superior during a deep partial lunar eclipse. We were loaded for bear....

    Earlier that day I had purchased a Marine Cell battery to power Mike Beacco's borrowed C-8 which we were using as a camera platform. We had also tinkered with the scope's motor system to avoid the tracking problems I had encountered earlier this month. We felt confident that everything would work... (fingers crossed)

    We were going to locate a spot along the Lake that was plowed-accessible with little interference from car lights or yardlights (more finger crossing).

    We stopped by the Chocolay Township scenic turnouts just east of Harvey, MI and took a couple of quick tripod shots of the comet high in the twilit/moonlit sky with the lights of Marquette on the horizon.

    Twenty Five minutes later we found the destination of our quest.... Just to the west of the frozen summer tourist town of AuTrain there was a plowed scenic turnout that had some tree buffer from the highway and NO streetlights (yay!). It also included a few lone pine trees that could be used as foreground objects in some tripod shots.

    Setup went quickly and uneventfully. We drift-aligned the mount confirmed the telescope was working and realized it was still an hour before the critical hour. By this time our fingers were frosted and our feet beginning to chill. (the temperature had crashed quite quickly...it felt near-zero-F already) We ran to the Van, started the engine and regenerated our bodies with car-warmth, hot coffee and chocolate.

    From the van windows we were able to view the early stages of the eclipse. About 60-minutes before the mid-eclipse we decided to brave the cold and get the cameras set for our photo-run. We had already adapted the scope with 2 piggyback mounts so that 2-cameras could be mounted on the scope. I placed my OM-1n with a Zuiko 200mmF4 lens on one while Mike placed his venerable Yashica with a 240mm f4 lens on the other.

    I suddenly noted that the scope was too high to actually view through the camera viewfinders with the scope pointing almost due north (we had brought nothing along that we could stand on). We quickly scrambled to lower the tripod legs but found that one of the legs could not be moved due to the cold temperatures having expanded or contracted the metal leg in such a way to make it immovable. So we quickly reextended the other two moveable legs, and re-drift-aligned. We ended up slightly adjusting the orientation of the camera alignment to allow me to view through my camera. By having Mike make the tightening adjustments to the ballhead while I craned my neck to get the camera framed...we were able to get both cameras framed and we were underway. (whew!)

    This put us a couple of minutes behind schedule...but we were ok. Mike guided the first 15-minute exposure while I moved around with my other Om2n camera body taking a few tripod shots with 1000-speed Royal gold. (we had 640 PJM in the other 2 bodies)

    The change in the sky was dramatic during mid-eclipse. There were MANY more stars visible. The comet, despite its low altitude, sported a 10-degree dust tail and a 12-14 degree ion tail to the naked eye!

    I guided the next 7-minute run with 135mm f2.8 lenses on the two scope-mounted cameras. I then guided one more 5-minute exposure with my Bronica medium format camera which had Kodak PMZ1000 film loaded.

    When we finished with the comet photography I quickly slapped my OM1n onto the C-8's prime focus for a few quick shots of the still-90-percent eclipsed moon.

    We quickly packed up and were home a little after 1:00 am. Hopefully some images will be shortly forthcoming. (more fingers crossed again)

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Brian Halbrook

snailmail: PO Box 761 Marquette, MI 49855 (USA)
46degN 87degW


From: Karl A. Matz (karl.matz@mankato.msus.edu)
Date: Fri, 21 Mar 1997 08:36:02 -0600
Subject: De la boca dels infants - Una història curta del cometa

Dr. Karl A. Matz
Department of Curriculum and Instruction
Mankato (MN) State University


Ramón Coll
18 Març 1997
Des d'un bon observatori

Ramón Coll


Naiad 418456@cienz.unizar.es
Mon, 17 Mar 1997 08:51:35 +0100.
[ASTRO] Notícia INcreible: He vist el HALE-BOPP !!!!! : )


From: JOHN LEPPERT denebobs@utma.com
Date: Wed, 12 Mar 1997 10:23:48 -0800
Subject: Comet Hale-Bopp observation reports


Antoni Parra aparra1@pie.xtec.es
9 de març.
Sembla un somni


From: Victor R. Ruiz rvr@idecnet.com
Date: Sun, 9 Mar 1997 08:51:48 +0000
Subject: Observación Hale-Bopp


From: Fran Soberanas fran@REDESTB.ES
Date: Sat, 8 Mar 1997 13:59:50 +0100
Subject: Hale Bop al vespre


From: Victor R. Ruiz rvr@idecnet.com
Date: Tue, 4 Mar 1997 06:47:22 +0000
Subject: Obs. Hale-Bopp 4.25 mar 1997 - Negativo


From: Michael Boschat andromed@ATM.DAL.CA
Date: Mon, 3 Mar 1997 05:41:27 -0400
Subject: Comet Hale-Bopp Morning sky Mar.3,1997 @ 0845 UT


From: George Zay GeoZay@aol.com
Date: Sun, 2 Mar 1997 10:05:24 -0500 (EST)
Subject: Hale/Bopp Observation Mar 2 ZAYGE

  • "L'home del temps es va equivocar... aquesta matinada estava clar."
  • "Em va semblar que la magnitud era de 0,4, a mig camí entre la de Vega i la d'Altair."
  • "Amb els binocles 4x100, la cua de pols es veia d'uns 3 graus de llargada. La cua iònica es difuminava a uns 5 graus."
  • March 2, 1997

    The weather man was wrong...at least from yesterdays initial forecast...it was clear this morning....but I guess not for long. Anyhow, I got up at 02:30 so that I could head out to my Descanso observatory and take some pictures of Hale/Bopp. The comet cleared a saddle in the distant hills at around 04:10...I started my first of 2 exposures at 04:15...a 30 minute exposure with Black and white T-max 400. Afterwards...I quickly swapped cameras and made a 26 minute exposure with Fuji color 400 film. I used my 10"SCT to do the guiding and my 200mm lens at f/3.5 to make the photographs. There were no wind at all...Sky LM near 5.6 and clear. Hopefully I'll have something worthwhile? I will try to develop the black and white image this evening from work.

    Before I did my camera work, I was able to get some good looking thru my 14X100 binoculars. The comet is definitely getting bright. I estimated it's magnitude to be at +0.4...midway between Vega and Altair. I measured the comets dust tail at 3 degrees. This mornings view of the ion tail was the first time that I was able to see it with ease and for any appreciable length...I give the ion tail at least 5 degrees...and it looked ghostly all by itself on the northern side. I had the feeling that if it was darker, I would have been able to see it extend for at least another 3 or 4 degrees with no trouble at all. The same jet is still to the south east...kinda like a big bright fan streaming off the nucleus. It appears to me as one big jet...but it could be more than one that appears merged?

George Zay
La Mesa, Ca
32 North 116 West


From: George Zay GeoZay@aol.com
Date: Sat, 1 Mar 1997 11:45:25 -0500 (EST)
Subject: Hale/Bopp Observation Mar 1 ZAYGE

George Zay
La Mesa, Ca
32 North 116 West