SOHO Introduction
STEREO Introduction

Official Comet Hunting Guide
Report a SOHO Object
Report a STEREO Object
Recent Reports

Basics (via NASA)
Sungrazing Comets

SOHO Kreutz-group
SOHO Non-Kreutz
Periodic Discoveries

LASCO C3 Transits
STEREO L4/L5 Campaign
C2/C3 Comet Tracks

NASA Citizen Science
SOHO Real-Time Images
Comet McNaught in 2007
15-years of SOHO Comets
Other Links

LASCO transits

Image showing planets in lasco
LASCO image from May 2000 showing four planets, the Pleiades star cluster and a halo CME

Past, present, and future transits of select known objects through the LASCO field-of-view.

Important note: These lists pertain ONLY to the SOHO/LASCO C3 camera. They do not in any way correspond to transits of planets in the STEREO/SECCHI data. The STEREO spacecraft are in a very different orbit to SOHO, and are in a completely different part of the solar system, and so will not witness the below transits at the same time as SOHO does. For information regarding planets in STEREO data, we recommend the "Where is STEREO?" page, the "STEREO Orbit Tool", or the "STEREO Planet Finder" page.

These lists were compiled by Jonathan Shanklin, Douglas Biesecker, Sebastian Hoenig, Derek Hammer, Michal Kusiak, Michael Mattiazzo, Giuseppe Pappa, Worachate Boonplod and Karl Battams. The dates are all approximate.

  • Bright stars, clusters, etc
  • Asteroids (compiled by J. Shanklin)
  • Planets and comets:

  • 2000 Transits
  • 2001 Transits
  • 2002 Transits
  • 2003 Transits
  • 2004 Transits
  • 2005 Transits
  • 2006 Transits
  • 2007 Transits
  • 2008 Transits
  • 2009 Transits
  • 2010 Transits
  • 2011 Transits
  • 2012 Transits
  • 2013 Transits
  • 2014 Transits
  • 2015 Transits
  • 2016 Transits
  • 2017 Transits
  • 2018 Transits
  • 2019 Transits
  • 2020 Transits