有 6329 筆資料符合您搜尋的條件

PTS
週三 16 1月, 2019 11:52
版面: 天文話題 Everything about Astronomy
主題: Amateur Telescope Making - Book 1 - In memory of an old friend, Dr. Lau Tai Chi.
回覆: 3
觀看: 77

Amateur Telescope Making - Book 1 - In memory of an old friend, Dr. Lau Tai Chi.

Amateur Telescope Making - Book 1 - In memory of an old friend, Dr. Lau Tai Chi. One day in 1969, I was in Cat Street, looking for a pair of binocular objectives to make an eyepiece for my newly finished 6-inch f/5 newtonian. While waiting for the shopkeeper to find the lens, an elderly gentleman as...
PTS
週一 14 1月, 2019 12:15
版面: 天文攝影 Astrophotography
主題: Sun, Moon and Mars
回覆: 3
觀看: 70

Sun, Moon and Mars

Sun, Moon and Mars

Date: 2019 Jan 12
Camera: Sony RX10 IV
Lens: Zeiss Sonnar 8.8-220 mm f/2.4-4 (24-600 mm 35-mm equivalent)
PTS
週一 14 1月, 2019 12:13
版面: 花鳥蟲魚 Natural World
主題: Birds and insect
回覆: 5
觀看: 97

Re: Birds and insect

more
PTS
週一 14 1月, 2019 12:12
版面: 花鳥蟲魚 Natural World
主題: Birds and insect
回覆: 5
觀看: 97

Re: Birds and insect

more
PTS
週一 14 1月, 2019 12:11
版面: 花鳥蟲魚 Natural World
主題: Birds and insect
回覆: 5
觀看: 97

Birds and insect

Birds and insect
Camera : Sony R10 IV
Date: 2019 Jan 12
PTS
週日 13 1月, 2019 21:22
版面: 天文攝影 Astrophotography
主題: 2019 Jan 12 Satellites of Uranus
回覆: 2
觀看: 74

2019 Jan 12 Satellites of Uranus

2019 Jan 12 Satellites of Uranus

4 satellites of Uranus were recorded at 12:50:58 UTC
telescope: 50-cm RC reflector at Hokoon
Camera: ASI1600MM Pro (not cooled)
exposure 13 s
south is up, east to the left
PTS
週日 13 1月, 2019 21:20
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: Asteroid 1603 Neva in Gemini
回覆: 1
觀看: 52

Asteroid 1603 Neva in Gemini

Asteroid 1603 Neva in Gemini About 115 minutes before the predicted time of occultation (17:43 UTC), the sky was 100% covered by cloud. The target star (TYC-1334-846-1) was located at about 14:30 UTC. Soon after that, the asteroid was identified and image capture was started around 14:33 UTC, at 2 m...
PTS
週六 12 1月, 2019 23:20
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: Observation of occultation of TYC-1334-846-1 by asteroid 1603 (Neva) underway
回覆: 0
觀看: 33

Observation of occultation of TYC-1334-846-1 by asteroid 1603 (Neva) underway

Observation of occultation of TYC-1334-846-1 by asteroid 1603 (Neva) underway. The sky clears up 30 minutes ago, and stars at 14th magnitude can be captures in 8 second exposure. Hope the clear sky can last until 17:45 UTC. If you blink these 3 images, you can see the asteroid's (double-arrowed) mov...
PTS
週一 24 12月, 2018 08:53
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: Asteroid occultation event on 2018 December 24
回覆: 0
觀看: 217

Asteroid occultation event on 2018 December 24

Asteroid occultation event on 2018 December 24 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 (38) Leda / UCAC4-591-011010 event on 2018 Dec 24, 11:36 UT Visible from Japan, China Summary ------- On 2018 Dec 24 U...
PTS
週六 15 12月, 2018 20:59
版面: 望遠鏡 廠制儀器 測試報告專欄 Telescope Testing Report Center
主題: The Giant Magellan Tekescope
回覆: 0
觀看: 447

The Giant Magellan Tekescope

The Giant Magellan Tekescope

GMT’S 2018 SCIENCE BOOK RELEASED, and can be downloaded from here:

https://www.gmto.org/2018/08/gmt-2018-s ... -released/
PTS
週五 07 12月, 2018 00:20
版面: 天文攝影 Astrophotography
主題: M31, M32, M110 and M33 at Hokoon
回覆: 3
觀看: 346

M31, M32, M110 and M33 at Hokoon

M31, M32, M110 and M33 at Hokoon

Telescope: 15-cm refractor f/5
camera: ASI1600MM Pro, binned 3x3
North is up, east to the right
PTS
週四 06 12月, 2018 23:54
版面: 天文攝影 Astrophotography
主題: 2018 Dec 6 Neptune & Triton at Hokoon
回覆: 1
觀看: 138

2018 Dec 6 Neptune & Triton at Hokoon

2018 Dec 6 Neptune & Triton at Hokoon

Telescope: 50-cm RC reflector, f/8
south is up, east to the left
PTS
週四 06 12月, 2018 23:39
版面: 天文攝影 Astrophotography
主題: 2018 Dec 6 Uranus & satellites at Hokoon
回覆: 2
觀看: 219

2018 Dec 6 Uranus & satellites at Hokoon

2018 Dec 6 Uranus & satellites at Hokoon

Telescope: 50-cm RC reflector, f/8
Camera: ASI1600MM Pro or ASI174MC

前往進階搜尋