Bosscha Observatory Bandung

Hi again guys! now i want to tell you about my favorite place in Bandung called Bosscha Observatory. I'm actually never been there because i don't have time to go there but soon i will go there with my friend :). 

Bosscha Observatory is the first modern astronomical research institution in Indonesia. This observatory is managed by Bandung Institute of Technology (ITB).  Bosscha Obsevatory also has a unique role as the only major observatory in Indonesia, even in Southeast Asia.

The observatory is located in Lembang, West Java, approximately 15 kilometers north of Bandung. It is situated on a hilly six hectares of land and is 1,310 m  above mean sea level plateau. The IAU observatory code for Bosscha is 299.

This observatory has 7 main telescopes :

1.The Zeiss double refractor

• This telescope is mainly used to observe visual binary stars, conduct photometric studies on eclipsing binaries, imagelunar craters, observe planets (Mars, Saturn and Jupiter) and to observe comet details and other heavy bodies. The telescope has two objective lenses with a diameter of 60 cm (24 in) each and a focal length of 10.7 m (35 ft).

2. Bima Sakti Telescope 

• This telescope is used to study galactic structure, stellar spectra, asteroid studies, supernovae, and to photograph heavy bodies. The main lens diameter is 71.12 cm (28.00 in), the correcting bi-concave and convex lens is 50 cm (20 in) with a focal length of 2.5 m (8.2 ft). It is also equipped with a spectral prism with a prime angle of 6.10 degrees for stellar spectra, a wedge sensitometer and a film recorder.

3. The Bamberg refractor

• This telescope is used to determine stellar magnitude, stellar distance, and photometric studies of eclipsing stars, solar imaging, and others. It is equipped with a photoelectric photometer a 37 cm (15 in) lens diameter and a 7 m (23 ft) meter focal length.

4. The Cassegrain GOTO

• This was a gift from the Japanese government. This computer controlled telescope can automatically view objects from a database and this was the first digital telescope at Bosscha. The telescope is also equipped with a photometer and spectrometer-spectrograph.

5. The Unitron refractor

• This telescope is used for observing hilal, lunar eclipse, solar eclipse and sunspot photography, and also other objects. Lens diameter is 10.2 cm (4.0 in) and a focal length of 150 cm (59 in).

    

6. The Sun Telescope

• This telescope is a telescope consisting of 3 pieces of Coronado  with 3 different filters. This facility is a gift from the Ministry of Education, Science and Culture, the Netherlands, Leids Kerkhoven-Bosscha Fonds, the Ministry of National Education, and the Ministry of Research and Technology.

7. The Radio Telescope 2,3m

• Bosscha 2.3 m radio telescope or SRT (Small Radio Telescope) designed by MIT-Haystack Observatory and made by Cassi Corporation. This telescope works at a wavelength of 21 cm or in the frequency range of 1400-1440 MHz. Within the range there is a transition frekluensi neutral hydrogen lines, so it is very suitable telescope for observations of neutral hydrogen, for example in our galaxy, the Milky Way. Moreover, these telescopes can be used to observe distant objects such as extra galactic and quasars.

The problem this observatory have to face is the area around this observatory is not suitable to do an observation because of the light pollution. I hope we will have more observatory in Indonesia with a little light pollution and far from resident. 

Source: 

http://bosscha.itb.ac.id/in/tentang-bosscha.html

https://en.wikipedia.org/wiki/Bosscha_Observatory

https://id.wikipedia.org/wiki/Observatorium_Bosscha

 

My Holiday Experience at Rancaupas Camping Site

Hello again everyone!!! by the way HAPPY NEW YEAR 2016!!! i hope this year will make us to become a better person than before :). This is my first post in 2016 and i will talk about my holiday experience at Rancaupas camping site. i hope you guys like it :)

But first i want to ask you about your holiday. Did you enjoy your holiday ? :). Actually this holiday i mostly resting at home but my Angklung team want to held a camping event to rest our mind after training all day. But the camping event it's not as i expected. Are you curious ? :) let's check it out.

I went to Rancaupas Ciwidey for 1 day from 9 until 10 January 2016. We met at Music Park at 6 AM. Not everyone arrive there yet, we still have to wait for our friends until the truck came at 7 am. On the trip we talked about so many thing  so we don't get bored but some of them were slept during the trip. The trip was about 3 hours because of the traffic. Finally we arrived at Rancaupas at 10 AM so the trip was approximately 3 hours.

Once we got there we all happy about it because of the view and not a lot of people there so it's a good place for refreshing. But our happiness suddenly fade  because once we thought that this is going to be a happy camping but it isn't. Actually the camping was meant to be our training for us to be more prepare to survive in Europe for 1 month.

First we have to give our cellphone to our supervisor so that we unable to use our cellphone during the camping. A lot of rules that we have to do and make us tired but it's for our interest if we want to survive in Europe.

The third main rules we got in there is we are unable to speak to each other unless we got permission to speak, we are unable to throw away trash at random place, and the last is we have to be on time on any situation without our clock. A lot of rules we broke on the first day but we could handle it just well.

In the night time we need to make fireplace before 7 pm but we fail because of that we get punished. On the sharing section we share our thought s a lot of my friends were cried and finally on the last day we sang Indonesia raya song together and i almost cried.

that was the most memorable night i ever experience. And i cant forget about it