FACTOID # 71: 72% of people in Mali earn less than $1 per day.
 
 Home   Encyclopedia   Statistics   Countries A-Z   Flags   Maps   Education   Forum   FAQ   About 
 
 
 
WHAT'S NEW
RECENT ARTICLES
More Recent Articles »
 

SEARCH ALL

FACTS & STATISTICS    Advanced view

Search encyclopedia, statistics and forums:

 

 

(* = Graphable)

 

 


Encyclopedia > Carl Wirtanen

Carl Alvar Wirtanen (19101990) was an American astronomer who worked at Lick Observatory.


He discovered periodic comet 46P/Wirtanen, as well as eight asteroids, including notably the Apollo asteroid (29075) 1950 DA, which is considered to have a non_negligible risk of impacting the earth in the year 2880. He also discovered two other Apollo asteroids: 1685 Toro and 1863 Antinous.



Asteroids discovered: 8
1600 Vyssotsky October 22, 1947
1685 Toro July 17, 1948
1747 Wright July 14, 1947
1863 Antinous March 7, 1948
1951 Lick July 26, 1949
2044 Wirt November 8, 1950
6107 Osterbrock January 14, 1948
(29075) 1950 DA February 22, 1950







  Results from FactBites:
 
ALICE: 46P/Wirtanen (659 words)
Periodic comet Wirtanen was discovered in 1948 by Carl Wirtanen of Lick Observatory in the course of a stellar proper motion survey.
The plate on which the discovery was made was taken on 1948 January 15, about a month and a half after the comet had passed perihelion, at which time it was about 16th magnitude.
Charles Morris (JPL) has compiled individual light curves for each of comet Wirtanen's 1986 and 1991 apparitions, and has also generated a combined light curve for both apparitions.
Miscellaneous Houghton County, Michigan Obituaries (3367 words)
She is survived by two daughters, Roberta Smith of Lake Linden, and Judith and Dennis Anttila of Ontonagon; one sone, Arthur C. Bates of Hurontown; 14 grandchildren; and seven great-grandchildren.
He is survived by a son, Carl and Marlene Johnson of Little Betsy; three daughters, Estelle Rantanen, of Calumet, Lois Monville, of Hubbell, Louella Palonen of Chassell; nine grandchildren; 17 great-grandchildren; a brother, Fred and Ruth Johnson, of Copper City; and a sister, Margaret Staricha, of Detroit.
She is survived by a son, Larry "Bear" and Jackie of Baraga; a daughter, Carrie and Darin Sikkila of Nisula; two grandchildren; three sisters, Jeanettte and Rudy Avellino and Kathleen Carr, both of Brighton, and Rose Davison of Fowlerville.
  More results at FactBites »


 
 

COMMENTARY     


Share your thoughts, questions and commentary here
Your name
Your comments

Want to know more?
Search encyclopedia, statistics and forums:

 


Lesson Plans | Student Area | Student FAQ | Reviews | Press Releases |  Feeds | Contact
The Wikipedia article included on this page is licensed under the GFDL.
Images may be subject to relevant owners' copyright.
All other elements are (c) copyright NationMaster.com 2003-5. All Rights Reserved.
Usage implies agreement with terms, 1022, m