VENUS TRANSİT

Venus Transit Pictures Here

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GÖZLEM ÖN BİLGİLERİ

Açısal Büyüklükler:

Güneş                        : 1920 “

Venüs                        : 58” (1/33)

Merkür (07May03)        : 12” (1/160)

Gözlemde Kullanılacak Ekipmanlar;

A.       Teleskop ve yan cihazlar

1.       Starmax 127

2.       Astroview Kundak

3.       60mm. Refractor

4.       Takip kumandası

5.       Göz mercekleri (25,12.5,7.5)

6.       Accerory Tray

7.       Laptop + Elektrik Adaptör.

B.       Adaptörler

          1.       Universal Variable Adapter (UVA)

          2.       Huni Adaptör

          3.       T-Ring EOS-127

          4.       T-Ring UVA-60

          5.       T-Ring UVA-EP

          6.       60mm bağlantı halkaları

          7.       Piggy-back halkası

C.      Kameralar

          1.       Canon EOS + 2 Ad. Fuji Sensia 100 Slayt Film

          2.       Vesta 675 Webcam

D.      Filtreler

          1.       5” Güneş Filtresi

2.       2.5” Güneş Filtresi

3.       IR Blocking Filtre

E.       Diğer

          1.       Canon EOS User Manual

2.       Boardmarker

          3.       Hartzman’s Mask (2.5” ve 5”)

          4.       4 Ad. D Size pil

          5.       Kulak Pamuğu

          6.       Post it

          7.       Toz Örtüsü

          8.       El feneri

          9.       Mont

          10.     Cep Telefonu + Şarj Cihazı

          11.     Tornavida

          12.     Anahtar-Wrench

          13.     Ses Kayıt Cihazı + 2 Ad. AAA pil

          14.     Kitchen Timer

07 HAZİRAN 2004

19:00           Bostancı’dan vapura biniş.

19:40          Heybeliada’ya varış ve ekipmanın gözlem alanına intikali,Yemek

20:00          Rasathane Keşif ve Ekipmanın kurulumu.

21:00          Polar Alignment (6x30 Finderscope ile)

21:45          8” Teleskop ile Jupiter Çekimleri

* 1x (10 fps X 30 sec), Darkframe çekimi (10 fps X 30 sec)

* 2x (10 fps X 30 sec), Darkframe çekimi (10 fps X 30 sec)

* 3x (10 fps X 40 sec), Darkframe çekimi (10 fps X 40 sec)

22:15          Starmax 127 ile Jupiter Çekimleri

* 2x (10 fps X 30 sec), Darkframe çekimi (10 fps X 30 sec)

* 3x (10 fps X 40 sec), Darkframe çekimi (10 fps X 40 sec)

22:45          Drift Alignment (Starmax + Vesta, UVA & IR Filter çıkartılmış olarak)

23:40          Neat Kuyrukluyıldız çekimi

* Starmax ve 25mm EP ile hazırla.

* 60mm + 7.5mm EP ile yukarıdaki donanım ile birleştir.

* Jupiter üzerinde iki teleskopu hizala.

* Slayt filmini Canon EOS’a tak

* 7.5 mm EP yi çıkartarak yerine T-Ring EOS-127’ yi tak.

* Canon EOS u bulb moduna alıp, remote shutter  bağla

* Canon EOS ile 60 mm refractor teleskobu iştirakle.

* Starmax ile Neat kuyrukluyıldızını bul

* Canon EOS visorundan Neat kuyrukluyıldızını bul.

                        * Starmax üzerindeki 25 mm EP I 7.5 ile değiştirip odak ayarı yap.

* Bir guide star seç (Theta Ursa Majoris)

* Hat Trick metodu ile 12 dakika poz süreli çekim yap.

00:30             M3, M4, M13 Gözlemi

                   * Starmax ve 25 mm EP, 60 mm + Vesta, ile birleşmiş duruma getirip  gerektiğinde Vesta ile resim çek.

08 HAZİRAN 2004

07:30- 07:50        Starmax 127 + Vesta focus tests (Use Hartzman’s mask for focusing, Capture a large sunspot and make image processing with Registax)

08:15                    Starmax + Vesta  (1x) already coupled, Attach Solar filters.

08:19 – 08:35      Starmax + Vesta (1x), 10 sec @ 10fps, shoot once in every 2 min

08:35 – 08:45     Starmax + Vesta (1x), 10 sec @ 10fps, shoot once in every 1 min

08:45 – 08:55      Starmax + Vesta (2x), 10 sec @ 10fps, shoot once in every 2 min

09:00 - 13:50       * Attach Starmax + Canon, 60 mm + Vesta with solar filters.

* Use Partial Metering Circle (PMC) for exposure  in a couple of shots.  Dial function knob to “M” o b Canon EOS, Keep the Sun in the middle of FOV and press (*) to activate PMC. Then adjust exposure to zero stops (check if exposure is 1/90 sec).

* Check exposure again with PMC in case clouds cover Sun.

* Fill the photo exposure chart for each shot.

* Make Canon shots only between 09:00 – 10:00 and 12:45 – 13:40.

* Enjoy the transit between 10:00 – 12:30 visaually.

* Shot at close-ups with any sunspots. (2x)

* Shot with 60mm + Vesta once in every 10 minutes 20 secs @ 10fps.

13:50 – 14:00      Starmax + Vesta (1x), 10 sec @ 10fps, shoot once in every 2 min

14:00 – 14:23         Starmax + Vesta (1x), 10 sec @ 10fps, shoot once in every 1 min

14:30                             Get ready to pack up.

PHOTO EXPOSURE CHART

İSTANBUL İÇİN KONTAK ve GEÇİŞ ZAMANLARI

Drift Method of Polar Alignment

1. Set up your scope as normal. Use one of the many methods to roughly align using Polaris. This can be as rough as just getting Polaris in the center of your sighter scope. The closer you get here, the shorter time you will spend drifting. (Hint: Level your tripod - it makes life easier)

2. Put a diagonal and illuminated guiding eyepiece in your scope. (Omit the diagonal for a Newtonian.) About 200 power is the minimum needed for adequate sensitivity during drifting. Rotate the eyepiece so that a star moves parallel to the crosshairs in Dec and RA when using the slow motion controls. Align it so that Dec is up and down (North & South) and RA is right and left (East & West).

3. Find a star (Arcturus) very near the meridian and about +20 degrees declination and align it to the center of the guiding eyepiece. Let your scope track (you may guide in RA only if you wish) and watch for Dec drift (up or down). Unless your alignment is very close, you will see drift in 5 to 30 seconds.

4. If the star drifts up, turn the azimuth knob that makes the star move right in the field. If the star drifts down, turn the azimuth knob that makes the star move left in the field (These adjustments are reversed for a Newtonian). After adjustment, use the slow motion controls to re-center the star. Repeat this until there is no drift for at least 5 minutes. Note: If you see drift in less than 5 seconds at 200X, you are probably 10 or more eyepiece fields off in azimuth. Give the knob a good crank. This may have to be repeated 3 or 4 times to notice the drift slowing. If you don't see any drift for 30 seconds or so, you may only be 1 or 2 eyepiece fields off. Make your azimuth adjustment accordingly. If after adjustment the star drifts in the opposite direction, you went too far.

5. Find a star (Altair) 15 to 25 degrees above the Eastern horizon and about +20 degrees declination. Repeat (2) and use the guidelines from (3) and (4). If the star drifts up, adjust the elevation to move the star down. If the star drifts down, adjust the elevation to move the star up. Repeat until there is no drift for at least 5 minutes. (Note: You may use a star in the west instead of the east but the adjustments must be reversed, that is, if the star drifts up, adjust the elevation to move the star up and if the star drifts down, adjust the elevation to move the star down.)