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Instruments in Science and

Education at Bosscha

Observatory ITB,

INDONESIA H. L. Malasan

Bosscha Observatory,

Faculty of Mathematics & Natural Sciences

Institut Teknologi Bandung,

Bandung, INDONESIA

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Major institutions constituting

professional astronomers in Indonesia

Institut Teknologi

Bandung

(ITB)

National Institute

of Aeronautics &

Space

(LAPAN)

Meteorology,

Climatology &

Geophysical

Agency

(BMKG)

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http://bosscha.itb.ac.id

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Bosscha Observatory in

Lembang

1073658 E 64932.93S, 1310 m above sea level

Lembang: 15 km north of Bandung, Mt. Tangkuban Perahu (2000 m, slightly active volcano) 8 km to the north

Typical seeing size=1−2, Vsky=18m/[]2

(Nugroho et al, 2006)

20 30 40 50

17.0

17.5

18.0

18.5

Sky Brightness Dependence with Altitude

Altitude

Sky

Mag

nitu

de in

V

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T e l e s c o p e s a t B o s s c h a O b s e r v a t o r y

Fakta & Data

Telescopes at Bosscha

Observatory up to 1989

Double 60cm Zeiss

refractor

71/51cm Schmidt

telescope)

37cm Bamberg

refractor

45cm GOTO Cassegrainian

reflector 5/21/2012 6

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2000-

Reposition of Bosscha Observatory

as “the only” observatory in

Indonesia

Center for multidisciplinary area of

research in basic space science

Enhancement of outreach activities

to answer pressing demand on public

service

“Science” oriented “Science” and

“Value” oriented institution

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ASTRO

NOMY

Primary

Education

Secondary

Education Science

public

outreach

Research

Tertiary

Education

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Small telescopes v.s.

Large telescope?

Networking observatories with “small”

telescopes

Astroeconomics model toward higher

productivity of (optical) data

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Astroeconomic model of network (Budding 1993) Cost-productivity for

group of telescopes

(characterized by D)

in remote/automated

fashion

1. Information flow

2. Key cost & organization

Advantages of small telescope: Efficiency

Adequacy Availability Flexibility

Serendipity

low capital

High capital

Relative knowledge rate WET

AAVSO

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Role of general-purpose small telescopes

(small telescope owner’s view)

Projects which require large number of observations

Projects which require all-sky or extended time coverage

Projects which require extreme flexibility

Stimulation for larger access ability to larger telescope

Training, experiment & development of (new) instrument

Education & outreach

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Extending capability of small-

intermediate size telescopes for

networking

Support of pointing & tracking for proper CCD imagery & spectroscopy

Autoguider

New control system based on common S/W Remote

Embedded acquistion system

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New GOTO Telescope

Controller Versi 1.0 (2005)

GOTO Telescope Controller

Versi 2.0 (2006)

Telescope Pointing

Analysis with new

control software

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Proliferation of small telescopes at the

Observatory and new public facility

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Bosscha Observatory: Evolution of astronomical data acquisition system

Sp

PMT

CCD

1989

2000

1982 1989

1994

1999-2003

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The Bosscha-Gunma

Compact Spectrographs

Type : Slit and plane grating

Configuration : Quasi-Littrow (=30)

Slit width : 80 m

Slit length : >20 mm

Slit position : Fixed

Collimator and

Camera

: Lens system

Collimator optics : f=240 mm

Camera optics : f=200 mm

Collimated beam

size

: 20mm (at f/12), 13.3 mm (at

f/18)

Gratings : 300 grooves/mm blazed at

500 nm

1200 grooves/mm blazed

at 500 nm

Order-cut filters : Short-cut at 390 nm and 480

nm

Comparison

source

: Fe-Ar-Ne

Basic pupils : Slit viewer

Main eyepiece

Dimension : 30 cm (l) 20 cm (w) 27

cm (h)

Weight : 15 kgf. (without camera)

Overal

throughput

: 10%

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Creation of homogeneous data

handling and analysis system

Hardwares:

Sun Ultra (Unix)

PCs running Linux

Large storage system

(GBytes)

IRAF (+IDL+GDL)

Data sharing and

handling at the same

level

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Bosscha Computer Cluster - Microwulf

Head Node

Node 1

Node 2

Node 3

internet

switch

Head Node Proc : 3.2 GHz

Memory : 1GB PC 5300

HDD: 1 TB + 80GB

Optical Drive : DVD-ROM

Node 1 Proc : 2.4 GHz

Memory : 512MB

Node 2 Proc : 2.4 GHz

Memory : 512MB

Node 3 Proc : 2.4 GHz

Memory : 2x256MB

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GAO-ITB Remote Telescope System (2005)

D=8 inches

f/D=10.0

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Astronomers & Students at the Observatory

carry out researches in various fields

Optical (Double star) Astrometry

Optical Photometry and Spectroscopy:

Stars, Solar system, interstellar mater

Radio Astronomy: Galaxy, Sun

Computer Network and Computer Cluster

Education and Popularization

Development of scientific instruments

Development of acquisition systems

Main activities of the Observatory :

1. investigation of orbits, determination of

masses of double stars.

2. Photometry and spectroscopy

3. Solar observation

4. Target opportunity objects

Common methods :

• Observation and gathering of

astronomical data

• Reduction of the obtained data

• Analysis of the reduced data

• Writing and Publish paper

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N

E

1

N

E

1

N

E

1

Asteroid (249) Ilse was observed on

2006 August 31 at the Bosscha

Observatory using SBIG CCD ST8-XME

attached to the Goto 45-cm telescope.

The upper, middle, and lower panels

were taken, respectively, on 15:32,

15:38, and 15:44 UT. The asteroid is

denoted by an arrow in each panel.

Observers: B. Dermawan, S. Siregar

Exp. Time: 120 s, Filter: R

Rmag = 13.2

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BVRI photometry of a 10-th mag eclipsing

binary BW Eri with GAO-ITB RTS + 20.3

cm telescopes, low resolution spectroscopy

with 45-cm GOTO telescope (Kristyowati et

al 2006)

B

V

R

I

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CCD Photometry of 7th mag RS Gru with GAO-ITB

RTS, spectroscopy with GOTO (Prasetyono, 2006)

Phase=0.0 Phase=0.5

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CCD observation of extrasolar planet transit using

GAO-ITB RTS and GOTO (Satyaningsih et al.

2006)

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The observed transit phenomenon

produces a dimming of the star HD

209458 of less than 2%

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CCD photometry of open cluster Ro6 with 28-cm

Schmidt Cassegrain telescope (Kuncarayakti et al.

2006)

V-band image of Ro 6

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Nova V1280 Sco (Kuncarayakti et al. 2007)

observed using 10’ telescope

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Productive

small

telescope for

emission line

spectroscopy

(Bosscha

Obs-Koyama

Astroph Obs,

Aug 2011)

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Electronic Telegram No. 2796

Central Bureau for Astronomical Telegrams

INTERNATIONAL ASTRONOMICAL UNION

CBAT Director: Daniel W. E. Green; Hoffman Lab 209; Harvard University;

20 Oxford St.; Cambridge, MA 02138; U.S.A.

e-mail: cbatiau@eps.harvard.edu (alternate cbat@iau.org)

URL http://www.cbat.eps.harvard.edu/index.html

Prepared using the Tamkin Foundation Computer Network

PR LUPI = NOVA LUPI 2011 = PNV J14542000-5505030

Nicholas J. Brown, Two Rocks, Western Australia, reports his discovery of a possible nova (mag 10.2) on two TMax 400 films taken on Aug. 4.73 UT using a 135-mm-f.l. f/2

Canon camera lens. Brown's approximate position for the variable is R.A. = 14h54m20s, Decl. = -55d05'03" (equinox 2000.0); he notes that nothing brighter than mag 11.7

appears on a film that he took on July 5.85. The variable was designated PNV J14542000-5505030 when it was posted on the Central Bureau's TOCP webpage, and based on

the spectroscopic reports confirming the object as a nova (see below), it has been assigned the permanent GCVS designation PR Lup by N. N. Samus. Ernesto Guido, Nick

Howes, and Giovanni Sostero report that a CCD image taken of PR Lup remotely through the 2.0-m f/10 Ritchey-Chretien "Faulkes Telescope South" (+ Bessel R filter) on Aug.

13.5 shows it at mag 8.4 and at position R.A. = 14h54m23s.09, Decl. = -55d05'11".2 (equinox 2000.0; USNO-B1.0 catalogue reference stars). Guido et al. have posted a color

image at website URL http://bit.ly/onysAh, and a comparison of their image with a Digitized Sky Survey R plate from 1999 is posted at http://bit.ly/pUq8jd.

Additional magnitudes for PR Lup (visual unless otherwise noted): July 20.042 UT, [11.5 (W. Liller, Vina del Mar, Chile; 85-mm-f.l. Nikon lens + Tech Pan film + orange filter);

July 25.989, 11.1 (Liller); Aug. 1.008, 10.4 (Liller); Aug. 8.040, 10.3 (A. Amorim, Florianopolis, Brazil; moonlight); Aug. 8.066, 10.3 (Gonzalo Vargas Beltran, Cochabamba,

Bolivia; via E. Waagen, AAVSO); Aug. 8.375, 10.3 (R. Stubbings, Tetoora Road, Victoria, Australia; via Waagen); Aug. 12.443, 9.6 (Joseph Brimacombe, Cairns, Australia;

remotely using a 40-cm RCOS telescope + U9000 CCD camera at Macedon Ranges Observatory,Melbourne, Australia; position end figures 23s.06, 11".2; image posted at

website URL http://www.flickr.com/photos /43846774@N02/6041126507/); Aug. 13.988, 8.5 (Liller).

F. M. Walter, Stony Brook University, reports that Brown's suspected nova is indeed an "Fe II"-type nova. Photometric and spectroscopic observations were obtained using

the SMARTS/Cerro Tololo facilities, starting on Aug. 9 UT. Photometry with the 1.3-m telescope (+ ANDICAM dual-channel photometer) shows maximum light (V = 9.1, K = 6.2)

on Aug. 13.02 (+1/-2 days). By Aug. 23.0, the nova had faded to V = 11.2 and K = 8.1. Optical spectroscopy with the 1.5-m telescope (+ RC specrograph) at a variety of

resolutions between Aug. 9.0 and 22.0 shows the spectrum of a classical "Fe II"-type nova near maximum light. Near photometric maximum, on Aug. 12.0, the blue spectrum

(range 365-540 nm; 0.43-nm resolution) showed strong emission, with P-Cyg absorption, in the Balmer series H-beta through H_11, Ca II K, and the Fe II multiplets 42 and

49. At this resolution, a single absorption component is seen, at a velocity of about -1100 km/s. On Aug. 13.98, H-alpha had an emission equivalent-width of -17.0 nm, with P-

Cyg absorption at -1100 km/s. Low-dispersion (1.7-nm resolution) spectra covering the full optical range on Aug. 16.97 and 22.04 show strong emission from O I

630.0-, 777.4-, and 844.6-nm; C II 732.5-nm; and the Ca infrared triplet. As of Aug. 22.0, no helium lines were obvious, and no high-temperature lines had appeared.

H. L. Malasan, J. Suherli, and E. Wiyando, Bosscha Observatory, Institut Teknologi Bandung, Indonesia; and A. Arai and H. Kawakita, Koyama Astronomical Observatory,

Kyoto Sangyo University, Japan, report on optical spectroscopic observations (R about 400) of PNV J14542000-5505030 = PR Lup on Aug. 16.6 UT at Bosscha Observatory

using a 20-cm Schmidt-Cassegrain telescope (+ SBIG DSS7 spectrograph). The spectra exhibit strong H-alpha, H-beta, and Fe II multiplet emissions, suggesting that the

variable is a "Fe II"-type classical nova. P-Cygni profiles are absent, and the FWHM of the H-alpha emission is about 1700 km/s.

NOTE: These 'Central Bureau Electronic Telegrams' are sometimes

superseded by text appearing later in the printed IAU Circulars.

(C) Copyright 2011 CBAT

2011 August 28 (CBET 2796) Daniel W. E. Green

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Coleostat dengan magnifikasi 2 kali

Teleskop Coronadi

Dilengkapi dengan CCD video camera

Digunakan untuk :

Pengamatan matahari dalam white

light, H-alpha dan Kalsium

Pendidikan

t e l e s k o p o b s e r v a t o r i u m b o s s c h a

Te l e s k o p S u r y a

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Radio telescopes

MIT-Haystack Small Radio Telescope (21

cm/1400-1449 MHz)

Jove solar/Jupiter burst radio telescope 20.1 MHz

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Public Service

&

Outreach 1. Group visit by schools and public

2. Public nights & star party

3. Remote observations for public in Japan

4. Training for teachers and educators

5. Supervision of practical works

6. Consultancies

7. Coordinator for eclipse and crescent

observation network

8. National Training center for Astronomy and

Geoscience Olympiads

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Training of Teachers in Jakarta, Yogyakarta,

Mataram, Manado and Palembang

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Network of crescent

observations

Toward International Moon Station

Program

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d a t a & s u r v e y

Number of

public vis i tors

Year Number

1997 12.287

1998 9993

1999 13.569

2000 24.226

2001 33.495

2002 39.114

2003 39.477

2004 54.102

2005 59.588

2006 56.859

2007 56.831

2008 63.480

2009 60.100

2010 65.000

0

1000

2000

3000

4000

5000

6000

7000

8000

TK

SD

SMP

SMA

UNIV

GURU2

UMUM

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Supporting facilities

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New development in 2010-2011: Bosscha Visitor

Transit Center

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World at night …

Bosscha Observatory is the only one in Indonesia & South east Asia

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Present situation

The Observatory Still unique with its best function to produce human resources for science development and transfer of technology

Science and technology developments need transfer strategy and spin-off

Growing population and deterioration of environment Serious problems for the Observatory’s functions

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Contributions Scientific

Annalen v.d. Bosscha-sterrenwacht since1923

International publications: >436

National publications: >297

Host of international conference : 8

Domestic, regional, global collaborations (Olympiad network, SEAAN, INA, ..)

Education Undergraduate and graduate programs

Training for educational personnel

IYA 2009 and beyond (UNAWE, YaG, etc)

Astronomy & Geoscience Olympiads

Public service > 60.000 visitors/year

75% students (Elementary-High)

25% University and general public

Lunar crescent obs. network

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BOSSCHA OBSERVATORY + ASTRONOMY RESEARCH DIVISION

INTERNATIONAL COMPETITIVE RESEARCH CENTER

Continuous modernization of instruments

Efficient observing mode using robotic or remote system

Regional and international collaboration in basic space science, technology and education

IAU: Astronomy for the

Developing World

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Stepping into the future .. comparative advantage of south-east asia area (near equator) for optical astronomical observations network

South-East Asian Astronomical

Network (SEAAN) established in

2007

Thailand - Malaysia - The Phillipines - Laos - Vietnam - Indonesia

- Singapore

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Thank you very much

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