ICEINSPACE
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Moon Phase
CURRENT MOON
Waning Crescent 10.3%
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27-02-2008, 12:41 PM
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PI rules
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Join Date: Jul 2006
Location: Sydney
Posts: 2,631
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How big is the moon?
If you hold each of the following objects at arms length, which best represents the apparent size of the moon?
1. A dinner plate
2. A saucer
3. An orange
4. A cherry
5 A pea
6 A pinhead.
Of course, you can check this by going outside with the six objects in hand, but I'm asking you to go by gut feeling as you sit in front of the computer.
Geoff
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27-02-2008, 12:49 PM
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Registered User
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Join Date: Dec 2007
Location: Sydney, AU
Posts: 14
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I'm going for "cherry", after an initial first instinct of "orange".
Mr Tickle could probably hold a dinner plate at arm's length, though.
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27-02-2008, 01:13 PM
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Registered User
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Join Date: May 2007
Location: in exile in Doha, Qatar
Posts: 159
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Whoa... I voted first and then read the posts. I'd say 'dinner plate' but I seem way out... 'barlow eyes'?  Or simply a narrow FoV?
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27-02-2008, 01:17 PM
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Verified Astronomy Noob
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Join Date: Sep 2007
Location: Corinda, Australia
Posts: 199
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Depends what length your arms are.
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27-02-2008, 01:26 PM
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Registered User
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Join Date: Apr 2006
Location: Warrnambool
Posts: 12,800
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I reckon about the size of a cherry, never really tried that experiment before.
Leon
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27-02-2008, 01:31 PM
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Registered User
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Join Date: Nov 2005
Location: Gold Coast
Posts: 420
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I find it's close to the size of the top of my thumb at arms length, so I'd go with a cherry.
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27-02-2008, 01:36 PM
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Sir Post a Lot!
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Join Date: Sep 2004
Location: Gosford, NSW, Australia
Posts: 36,799
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I'm lead to believe it's the size of a thumbnail, so I went with pea.
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27-02-2008, 01:44 PM
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6000 post club member
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Join Date: Oct 2005
Location: Launceston, Australia
Posts: 6,570
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I'll also say cherry.
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27-02-2008, 01:47 PM
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Registered User
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Join Date: Jul 2005
Location: Wentworth Falls NSW
Posts: 1,112
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Remember something about the size of a thumbnail, so Cherry.
Or maybe a large pea 
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27-02-2008, 01:47 PM
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Let there be night...
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Join Date: Aug 2006
Location: Hobart, TAS
Posts: 7,639
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Quote:
Originally Posted by iceman
I'm lead to believe it's the size of a thumbnail, so I went with pea.
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You must have child-like thumbs then Mike! 
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27-02-2008, 01:51 PM
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Sir Post a Lot!
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Join Date: Sep 2004
Location: Gosford, NSW, Australia
Posts: 36,799
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little finger nail, i'll say then.
I've seen big cherries!
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27-02-2008, 01:57 PM
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PI rules
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Join Date: Jul 2006
Location: Sydney
Posts: 2,631
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Quote:
Originally Posted by mrsnipey
Depends what length your arms are.
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Let's go with 60 cm
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27-02-2008, 02:00 PM
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No obs, raising Harrison
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Join Date: Nov 2007
Location: Melbourne, Australia
Posts: 796
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I went with pea. The moon does change in size by around 15% too.
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27-02-2008, 05:13 PM
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Star Struck
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Join Date: Nov 2007
Location: Canberra
Posts: 2,797
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I went with a cherry, but i'm not sure.
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27-02-2008, 05:21 PM
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Let there be night...
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Join Date: Aug 2006
Location: Hobart, TAS
Posts: 7,639
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Quote:
Originally Posted by iceman
little finger nail, i'll say then.
I've seen big cherries!
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I'm taking cherries to be the typical Woolies supermarket type - about 15-20mm in diameter.
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27-02-2008, 05:22 PM
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Sir Post a Lot!
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Join Date: Sep 2004
Location: Gosford, NSW, Australia
Posts: 36,799
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I'm taking pea to be your typical garden variety - not a shrivelled up dried pea  7mm or so.
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27-02-2008, 05:33 PM
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PI rules
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Join Date: Jul 2006
Location: Sydney
Posts: 2,631
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Quote:
Originally Posted by iceman
I'm taking pea to be your typical garden variety - not a shrivelled up dried pea 7mm or so. |
Yep.
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27-02-2008, 05:49 PM
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Plays well with others!
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Join Date: Nov 2004
Location: Ridgefield CT USA
Posts: 3,535
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I voted Pea...but like others I was thinking thumbnail...
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27-02-2008, 06:01 PM
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Registered User
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Join Date: Dec 2007
Location: Sydney, AU
Posts: 14
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Quote:
Originally Posted by goober
I went with pea. The moon does change in size by around 15% too.
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Really! We might want to get some astrophysists onto that, ASAP
(I know what you meant though..  )
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27-02-2008, 06:08 PM
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with my other baby
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Join Date: Oct 2006
Location: South Hedland, WA
Posts: 64
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I went with an orange. I'm almost 2m tall and have very long arms, even for my height. Besides, isn't it a male thing to overestimate size?
Trav
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