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International Astronomy Day

On 29 Apr, 2020 By jenna.m.hinds@g...

Event Date:

Saturday, May 2, 2020 - 10:00am to 10:00pm

Join us at RASC National, RASC Ottawa and Ottawa Valley Astronomy and Observers Group as we share the sky with you! The schedule is full of live solar, planetary and deep sky observing. In the event of inclement weather, there will be observing-related presentations.

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O1.20141001

On 28 Apr, 2020 By rosenfel@chass....

RASC O1.20141001
tempered-glass fragments created by meteor shock wave, Chelyabinskaya oblast′, Russia (54° 49′N, 61° 7′E)
anonymous gift 2014 October 1
5.17 × 2.3 × 1.8 cm.; 2 fragments, φ scale = –2 to –3 (Wentworth size class=fine gravel), 0.65 × 0.6 × 0.4 cm., 0.59 × 0.52 × 0.4 cm.
0.3 gr.
...
...
good
...

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I11.20141001

On 28 Apr, 2020 By rosenfel@chass....

RASC I11.20141001
Tektite, Australasian Strewn Field
anonymous gift 2014 October 1
5.17 × 2.3 × 1.8 cm.
...
pear-shaped splashform orientated
...
excellent state of preservation
not previously published
1. McCall, G.J.H. (2001). Tektites in the Geological Record: Showers From the Sky. Bath: Geological Society of London, 51-54

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I10.20141001

On 28 Apr, 2020 By rosenfel@chass....

RASC I10.20141001
2. Moldavite, Czech Republic
3. anonymous gift 2014 October 1
4. 2 fragments, 1.3 × 1.2 × 0.6 cm., 1 × 0.70 × 0.68 cm.
5. 0.84 gr., 0.5 gr.
...
...
good
not previously published
1. Trnka, M. & Houzar, S. (2002). Moldavites: a Review. Bulletin of the Czech Geological Survey 77, 4, 283-302
2. Baier, J. (2007). Die Auswurfprodukte des Ries-Impakts, Deutschland, Documentae naturae 162. Munich: Documenta naturae

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I9. 20141001

On 28 Apr, 2020 By rosenfel@chass....

1. RASC I9. 20141001
2. Sudbury distal ejecta, Hillcrest Park (Thunder Bay), Ontario, Canada (48° 26' 4" N, 89° 14' 4" W )
3. anonymous gift 2014 October 1
4. 2 fragments, 5.2 × 3.5 × 1.6 cm., 5.1 × 3.3 × 1 cm.
5. 15.1 gr., 13.8 gr.
6. ...
7. ...
8. friable
9. not previously published
1. Addison (2005)
2. Addison (2010)
3. Glass & Simonson (2012)

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M34.20141001

On 28 Apr, 2020 By rosenfel@chass....

RASC M34.20141001
NWA 4473, achondrite (diogenite), find 2006, 7.02 kg.
anonymous gift 2014 October 1
ca. 30 fragments, φ scale = 4 to –2 (Wentworth size classes = very fine sand to very fine gravel), 0.01–0.36 cm.
0.081 gr.
...
colour range: N 3/ (Very Dark Gray) matrix, 5R 8/1 (White), 5Y 8/3-5Y 8/4 (Pale Yellow), and 2.5YR 7/6 (Light Red)-2.5YR 5/6 (Red) clasts
good
not previously published

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M33.20141001

On 28 Apr, 2020 By rosenfel@chass....

RASC M33.20141001
NWA 2999, achondrite (angrite), Morocco or Algeria, find 2004, 0.392 kg.
anonymous gift 2014 October 1
fragment, φ scale = –1 to –2 (Wentworth size class = very fine gravel), 0.37 × 0.29 × 0.18 cm.
0.08 gr.
...
Colour range: N 2.5/ (Black)
good;
not previously published
1. IMCA EoM: www.encyclopedia-of-meteorites.com/meteorite.aspx?id=33449

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M32.20141001

On 28 Apr, 2020 By rosenfel@chass....

RASC M32.20141001
Jbilet Winselwan, carbonaceous chondrite (CM2), Western Sahara, Morocco (26° 40′ 3′′N, 11° 40′ 38′′W ), find 2013, 6 kg.
anonymous gift 2014 October 1
complete granule, φ scale= –1 to –2 (Wentworth size class=very fine gravel), 0.38 × 0.28 × 0.24 cm.
0.089 gr.
...
colour range: N 4/ (Dark Gray) to N 2.5/ (Black) exterior, N 2.5/ (Black) interior visible at broken surface
good
not previously published

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M31.20141001

On 28 Apr, 2020 By rosenfel@chass....

RASC M31.20141001
Koltsovo, ordinary chondrite (H4), Kaluga District, Russia (54° 45′ 2′′N, 36° 58′ 41′′E), find 2004, 20.02 kg.
anonymous gift 2014 October 1;
fragment, φ scale = –3 (Wentworth size class=fine gravel), 6.1 × 5.9 × 3.0 cm.
0.161 gr.
...
colour range: N 4/ (Dark Gray) matrix, with N 5/ (Gray) to N 3/ (Very Dark Gray) chondrules
good
not previously published

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M30.20141001

On 28 Apr, 2020 By rosenfel@chass....

RASC M30.20141001
Northbranch, ordinary chondrite (H5), Kansas, USA (39° 59′ 30" N, 98° 20′ 30" W ), find 1972, 76 kg.
anonymous gift 2014 October 1
ca. 30 fragments, φ scale = 3 to –3 (Wentworth size class=fine sand to fine gravel), 0.019–0.54 cm.
0.04 gr.
...
colour range: N 3/ (Very Dark Gray) matrix
good
not previously published

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