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PTS
週二 25 9月, 2018 10:42
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: 2018 October 31 asteroid occultation event
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2018 October 31 asteroid occultation event

2018 October 31 asteroid occultation event I've prepared finder charts from: Digital Sky Survey (15 x 15 arcmin) and The Sky 6 (15x11 arcmin) IOTA/IOTA-ES occultation update for (2394) Nadeev / TYC 6351-00085-1 event on 2018 Oct 31, 11:45 UT Visible from Japan, China, SE Asia Summary ------- On 2018...
PTS
週二 25 9月, 2018 06:34
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: 2018 September 25 asteroid occultation event
回覆: 1
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Re: 2018 September 25 asteroid occultation event

Reminder.
Yhere may be some chance tonight.
PTS
週日 23 9月, 2018 14:30
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: data reduced -2018 September 13 asteroid occultation event.
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data reduced -2018 September 13 asteroid occultation event.

Data reduced for the observation of the 2018 September 13 asteroid occultation event. Data reduction by Tsutomu Hayamizu of NAO, Japan. Observer: Taksun Poon, Kenneith Hui, Bartholomew Tsang, Thomas Fok Place: Tsuen Wan, Hong Kong, China Long.: 114o 06' 29.39" E, Lat.: 22o 23' 00.91" N, Height: 150m...
PTS
週六 15 9月, 2018 09:02
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: Successful observation of the 2018 September 13 asteroid occultation event
回覆: 2
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Re: Successful observation of the 2018 September 13 asteroid occultation event

A report of this observation was sent to IOTA, and Dr. Soma Mitsuru of the National Astronomical Observatory, Japan who is responsible for asteroid occultation data in Asia.
PTS
週五 14 9月, 2018 06:57
版面: 天文攝影 Astrophotography
主題: M57 (Ring Nebula) at Hokoon
回覆: 4
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M57 (Ring Nebula) at Hokoon

M57 (Ring Nebula) at Hokoon
Several snap shots were taken of M57, a relaxation exercise after the occultation observation.

Telescope : 50-cm f/8 RC reflector
Camera : ASI1600MM Pro(no cooling)
exposure : 1, 2, 4 and 15 second
PTS
週五 14 9月, 2018 06:54
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: Successful observation of the 2018 September 13 asteroid occultation event
回覆: 2
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Successful observation of the 2018 September 13 asteroid occultation event

Successful observation of the 2018 September 13 asteroid occultation event Thanks to the incoming typhoon, we have a clear sky this evening. With the help of Kenneith Hui, Bartholomew Tsang and Thomas Fok, and GT Fish, we complete preparation and the target star was located at around 12:20 UTC. Prel...
PTS
週一 10 9月, 2018 06:29
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: TIMING OBSERVATION OF ASTEROID OCCULTATION EVENTS
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TIMING OBSERVATION OF ASTEROID OCCULTATION EVENTS

TIMING OBSERVATION OF ASTEROID OCCULTATION EVENTS For new comers to timing observation of asteroid occultations, here is a brief guide: a. You shoud have a well aligned mounting. Equatorial mount is desirable but altazimuth mounts are perfectly useful. GOTO mounts are useful but not a must. b. Use a...
PTS
週日 09 9月, 2018 12:59
版面: 二手交易場 Second Hand Area
主題: Sharpstar CF-90 + 0.76 reducer + 微動雲台 (sold)
回覆: 5
觀看: 605

Re: Sharpstar CF-90 + 0.76 reducer + 微動雲台

mbike 寫:
週日 09 9月, 2018 09:24
$3900, 要清除家中雜物。
Please check PM

pts
PTS
週六 08 9月, 2018 21:52
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: 2018 September 27 asteroid occultation event
回覆: 0
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2018 September 27 asteroid occultation event

2018 September 27 asteroid occultation event I've prepared finder charts from: Digital Sky Survey (15 x 15 arcmin) and The Sky 6 (15x11 arcmin) IOTA/IOTA-ES occultation update for (798) Ruth / UCAC4-512-001797 event on 2018 Sep 27, 16:25 UT Visible from Japan, China, SE Asia Summary ------- On 2018 ...
PTS
週六 08 9月, 2018 21:28
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: 2018 September 25 asteroid occultation event
回覆: 1
觀看: 50

2018 September 25 asteroid occultation event

2018 September 25 asteroid occultation event I've prepared finder charts from: Digital Sky Survey (15 x 15 arcmin) and The Sky 6 (15x11 arcmin) IOTA/IOTA-ES occultation update for (1256) Normannia / HIP 15555 event on 2018 Sep 25, 17:07 UT Visible from Japan, China, SE Asia Summary ------- On 2018 S...
PTS
週六 08 9月, 2018 12:46
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: 2018 September 15 asteroid occultation event
回覆: 0
觀看: 49

2018 September 15 asteroid occultation event

2018 September 15 asteroid occultation event I've prepared finder charts from: Digital Sky Survey (15 x 15 arcmin) and The Sky 6 (15x11 arcmin) IOTA/IOTA-ES occultation update for (528) Rezia / UCAC4-278-127821 event on 2018 Sep 15, 11:03 UT Visible from Taiwan, China Summary ------- On 2018 Sep 15 ...
PTS
週六 08 9月, 2018 11:47
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: 2018 September 13 asteroid occultation event
回覆: 0
觀看: 45

2018 September 13 asteroid occultation event

2018 September 13 asteroid occultation event I've prepared finder charts from: Digital Sky Survey (15 x 15 arcmin) and The Sky 6 (15x11 arcmin) IOTA/IOTA-ES occultation update for (429) Lotis / UCAC4-381-083135 event on 2018 Sep 13, 12:58 UT Visible from China, SE Asia Summary ------- On 2018 Sep 13...
PTS
週五 07 9月, 2018 23:10
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: 2018 September 9 asteroid occultation event
回覆: 0
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2018 September 9 asteroid occultation event

2018 September 9 asteroid occultation event I've prepared finder charts from: Digital Sky Survey (15 x 15 arcmin) and The Sky 6 (15x11 arcmin) IOTA/IOTA-ES occultation update for (702) Alauda / UCAC4-346-148662 event on 2018 Sep 09, 11:04 UT Visible from E Russia, China Summary ------- On 2018 Sep 0...
PTS
週六 25 8月, 2018 06:25
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: Dwarf nova outburst of GK Per (N Per 1901)
回覆: 0
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Dwarf nova outburst of GK Per (N Per 1901)

AAVSO Alert Notice 649 Dwarf nova outburst of GK Per (N Per 1901) August 24, 2018: The old nova GK Per (N Per 1901), which has dwarf nova (minor) outbursts, appears to be going into outburst, according to observations reported to the AAVSO. Recent observations include: 2018 Aug. 21.04030 UT, 13.0 (E...
PTS
週三 15 8月, 2018 06:26
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: Semiregular variable reclassified as symbiotic
回覆: 0
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Semiregular variable reclassified as symbiotic

AAVSO Alert Notice 648 Semiregular variable reclassified as symbiotic: outburst of ASASSN-V J195442.95+172212.6 = Vend47 (Sge) August 14, 2018 Event: ASASSN-V J195442.95+172212.6 (TCP J19544251+1722281 = Vend47), originally classified as a semiregular variable, has been reclassified as a symbiotic v...

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