Ina

Ina (aka D-shaped caldera)

Lat: 18.6°N, Long: 5.3°E, Diam: 3 km, Depth: km, Rükl: 22

[[Image:normal_Ina%252BCaldera-050807.jpg|external image normal_Ina%252BCaldera-050807.jpg]]
Left: Mick Hyde Ina can be spotted in the upper part of the plateau in the center of this frame. The crater near the bottom is Yangel'. The mare areas include Lacus Felicitatis (to the left of the Ina plateau), Lacus Odii in the upper right, and a part of Lacus Doloris in the lower right.
Right: AS17-M-1518 Ina is the D-shaped crater pointed to by the white arrow in this extreme enlargement of the area around the crater. The other IAU-approved names in this small area are Dag, Osama and Mons Agnes.

Images

LPOD Photo Gallery Lunar Orbiter Images Apollo Images Apollo 17 Hasselblad ASU Image of the Week 03/03/2009

Orbital Hasselblad photographs of Ina, made by the astronauts of Apollo 15 and Apollo 17: (research Danny Caes)

• Apollo 15, Magazine QQ (black and white)
  • AS15-81-11013 (high sun)
• Apollo 15, Magazine RR (black and white)
  • AS15-95-12893 (high sun)
  • AS15-95-12894 (high sun)
• Apollo 17, Magazine OO (color)
  • AS17-151-23259 (Ina in the distance)
• Apollo 17, Magazine PP (color)
  • AS17-152-23286 (high sun, bluish Ina!). Hi-Res scan from Kipp Teague's Flickr gallery.
  • AS17-152-23287 (see also: Apollo 17 Preliminary Science Report, page 4-23). Hi-Res scan from Kipp Teague's Flickr gallery.
• Apollo 17, Magazine MM (color) (westward flight over the Sulpicius Gallus region toward Wallace at the morning terminator)
  • AS17-153-23577 (Ina in the distance) Hi-Res scan from Kipp Teague's Flickr gallery.
  • AS17-153-23578 (Ina nearby, in the foreground) Hi-Res scan from Kipp Teague's Flickr gallery.
• Apollo 17, Magazine QQ (black and white)
  • AS17-154-23667
  • AS17-154-23672 (see also: Apollo 17 Preliminary Science Report, page 30-15).
• Apollo 17, Magazine XX (black and white, Nikon photography)
  • AS17-159-23931
• For examples of Apollo photos of Ina at much higher resolution see the freely available article by G. J. Taylor (2006) which includes some of the startlingly clear images from the article in Nature by Schultz, Staid and Pieters (2006).
• For those who want to detect the extreme HiRes close-up of Ina on the LRO's ACT-REACT Quick Map: Longitude 5.31, Latitude 18.65.- DannyCaes Aug 20, 2011

Ina's remarkable bluish coloration

Apollo 17's orbital color Hasselblads of the Lacus Felicitatis region show very well Ina's remarkable bluish coloration. This blue color is also noticeable on the LROC's WAC Albedo/Color Map, see close-up of the Lacus Felicitatis region: http://bit.ly/1GOUc0D
 
 

Maps

(LAC zone 41C3) LAC map Geologic map LM map LTO map

Description

Ina is the most well-known one of the moon's many mysterious IMPs (Irregular Mare Patches). We don't know a thing about the conditions of the surface of Ina. The Lunar Reconnaissance Orbiter's (LRO's) Hi-Res close up photographs of most of the IMPs look very unpredictable, it's as if IMPs are made of an odd substance which could not support a lander. Or is it just a layer of common regolith upon a sturdy solid underground?
As the Apollo astronauts once said: We barely scratched the surface of the moon. In other words: 99.9 percent of the moon's surface is still waiting to be explored. The IMPs (such as Ina) should be the very first targets on the list of a new project of lunar excursions! (unmanned or manned).

Description: Wikipedia

Ina

Additional Information

On certain digital lunar atlases, the location of Ina is erroneously located at crater Ideler (the same coordinates and diameter of Ideler). - DannyCaes Feb 15, 2010
 
 

Nomenclature

• Latin female name.
• According to NASA RP-1097, "Ina" is a Minor Feature whose name was originally intended only for use in connection with Topophotomap 41C3/S1(on which it is plotted).

LPOD Articles

• L99 Captured
• Ina Imaged
• Ina ain't young (a very detailed orbital photograph of this rare surface formation!).
• Ina (but no gadda da vida)

Lunar 100

L99: D-shaped young volcanic caldera.

Bibliography

• Qiao, L. et al (2017). Ina pit crater on the Moon: Extrusion of waning-stage lava lake magmatic foam results in extremely young crater retention ages – Geology, G38594., , doi: 10.1130/G38594.1. March 15 2017.
• Staid, M. et al (2011). The Spectral Properties of Ina: New Observations from the Moon Mineralogy Mapper – 42nd LPSC Conference (Mar), 2011.
• Apollo 15 Preliminary Science Report
• Apollo 17 Preliminary Science Report
• Schultz, Peter H.; Staid, Matthew I.; Pieters, Carlé M. (2006). Lunar activity from recent gas release. Nature, Volume 444, Issue 7116, pp. 184-186.
• Taylor, G. J. (2006). Recent Gas Escape from the Moon. Planetary Science Research Discoveries. (Hawaii Institute of Geophysics and Planetology, University of Hawaii).
• APOLLO OVER THE MOON: A VIEW FROM ORBIT, Chapter 7: Unusual Features (part 1), Figures 232-233-234.

Who was Joaquin Miller's "Ina" ?

See page 209 in the National Geographic of February 1969 (that wonderful MOON-article from Kenneth F. Weaver).
  I don't know a thing of poetry, but... it would be interesting to find out the identity of Joaquin Miller's "Ina". - DannyCaes Aug 29, 2017
  Perhaps it was Ina Coolbrith (1841-1928). Ina Coolbrith befriended the poet Joaquin Miller and helped him gain global fame.

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