好想睇到水星

Hong Kong Hiking Web: 相關興趣 Related Interest: 觀天 Sky Watching: 好想睇到水星
   By Joey on Sunday, January 12, 2003 - 3:15 am:  Edit

水星好難先見到,請問幾時睇好?

   By T!M on Tuesday, August 12, 2003 - 12:55 pm:  Edit

由於水星,金星都是內行星而且很接近太陽, 在晚間是看不到的, 如果要睇的話, 可以在黎明或黃昏時觀察太陽(不宜用眼直接觀察), 如果當時水星或金星是位於太陽和地球之間就有機會看見(黑色一點).

   By lc on Tuesday, August 12, 2003 - 8:07 pm:  Edit

No, we can see Venus (金星) at night by naked eye. It is the No.3 bright object in the sky. It's brightness is something like minus four (-4) level. It can even make your shadow in complete darkness. Of course its most bright time is at before 黎明 and early night. It is certainly not a dark point.

In case of Mercury (水星), it might be correct.

   By Ron on Wednesday, August 13, 2003 - 4:32 pm:  Edit

Venus and Mercury are inner planets but they are not always between the Sun and Earth (not always along the same line at least). When Mercury is directly between the Sun and Earth, it can become a dark dot on surface of Sun but it is not easy (and potentially dangerous) to observe this unless with special sun-observing telescope.

However, Venus or Mercury will (for certain period) be at an angle from the sun and then it will become a bright star appearing after sunset or before sunrise (eastern sky in morning, or western sky in evening). The greatest possible angle between Mercury and Sun is smaller than Venus, so Mercury will be lower in the sky than Venus, even at the greatest angle (called 大距).

   By LC on Monday, August 18, 2003 - 7:03 pm:  Edit

Mars is very close to Earth this year, good chance to have some observe.

   By on Sunday, August 24, 2003 - 8:06 pm:  Edit

想問有那些地方交通比較方便而又可以睇到今次的火星大沖


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