Summer Solstice
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Summer Solstice

Summer Solstice

Summer Solstice

This is a section of yesterday’s plotting sheet. While not Summer Solstice exactly, there are some interesting things going on that pertain specifically to the Solstice.

1. The dotted circle in the center is the sun at local noon. It is drawn at the sun’s proper declination at Local Apparent Noon (LAN) for yesterday. N23 24.3 . At Solstice, the sun’s declination is N23 26.5.

2. My noon position is shown as 23 25N.

3. LAN, ie when the sun is at it’s highest point in the sky at my longitude and therefore due south, is 23 28.1N

4. The highlighted dotted line is the Tropic of Cancer. It is the furthest North the sun will travel before heading South.

By some happy coincidence, I was very very close to the Tropic of Cancer at very nearly Summer Solstice at Local Apparent Noon. The sun was directly overhead (the observed altitude of the sun was 89 55.2) at LAN and I went from looking at it due North to due South in seconds as it passed through zenith requiring a 180 degree shift in viewpoints.

The above also means that as of yesterday, the sun will now always be South of me. For the last six months or so, it has been North. South for us Great White Northeners is normal. Looking North at noon for the sun has left me scratching my head on more than one occasion when austral waves and backwards winds have scrambled my sense of direction.

Incidentally, there is a mistake on this sheet. I didn’t catch it until I enlarged the photograph. I’m sure there are at least a few reading this now who have picked it up. For those that haven’t, I’ve drawn in the Tropic at the wrong latitude. It should be at N23 26.5 . For some unfathomable reason, I’ve drawn it in at N23 23.5. Most likely, I muddled the sun’s declination and the Tropic in haste.

While teaching this stuff, I’ve always maintained that your DR errors will be greater than your plotting errors which will be greater than your sextant errors. Case in point …

Follow my tracks in real-time:
https://bit.ly/svseaburban

 

16 Comments
  • BT
    Posted at 10:41h, 02 July Reply

    Bert, you are amazing! Following you progress and posts with great admiration for you courage and wishing / willing you success. You are on the downhill run now. All the best from an Aussie follower BT ( 2 degrees of separation from your Uncle Joe).

  • Sandi Lyon
    Posted at 03:20h, 06 July Reply

    That looks about right. When it’s hot out in the ocean, its foggy and wet on the Wet Coast. That means you’re on the right track, heading the right direction. Finally. Woohoo.

  • Anita Kuntz
    Posted at 00:10h, 08 July Reply

    Following you journey and am truly amazed.

  • Suzan Persons
    Posted at 15:43h, 09 July Reply

    What an amazing journey!!

  • Karin Hill
    Posted at 15:27h, 13 July Reply

    Been following you for a couple of months now. What an amazing journey! Your blog is insightful and humorous. Almost home. Safe travels!

  • MountainJack
    Posted at 19:52h, 14 July Reply

    Has to be an amazing feeling to be so near home, Bert.

    Have spent months at sea “steaming”, not sailing, gaining my sea legs with the constant motion just became second nature. Getting back to a stable platform at dockside or over on the beach left me wobbly for a day or two. Cannot imagine how you’ll feel after a year of hardly ever being stable. There is that other thing having been on your own for that long; the familiarity of constant aloneness , the feeling of approach avoidance, being forced back into humanity. Might feel as though you could just extend a little bit more and savor the experience just a little longer…naw, probably not.

    Welcome back home, Bert. You’ve completed one heck of a feat.

  • Arthur Oliver
    Posted at 04:33h, 15 July Reply

    Getting oh so close. What’s the ETA?

  • estelle C whiddon
    Posted at 02:58h, 16 July Reply

    Bert, your homecoming Saturday will be a joyous occasion! I have followed the voyage daily and hope your arrival home brings much joy.

  • Peter Jungschaffer
    Posted at 07:19h, 18 July Reply

    This has been so great. Thank you!!!

  • BT
    Posted at 09:50h, 18 July Reply

    Hi Bert, you are just a few hours away from home. We are cheering for your most successful journey. We are especially amazed at the sailing conditions below Australia and New Zealand, as we can have some very big polar blasts hit us at this time of the year. Cannot imagine what it was like to sail through that type of weather. Can only take of hats off to you I amazement. Hope that you make it to Oz for a visit. What a wonderful achievement you have accomplished. /bt

  • Antonio Corbelletta
    Posted at 16:15h, 18 July Reply

    Congratulations! What an adventure! Well done. I have enjoyed tracking your voyage everyday just wish I would have know about it earlier, from the beginning.

  • Suzan
    Posted at 18:13h, 18 July Reply

    Yeahhhhhhhhh Bert!!! You have done it!!!
    Happy Homecoming – And stay safe!!!
    It isn’t the same world that you left!!
    I’m going to miss reading your travels and your adventures!! But thrilled that you’re home (almost) safe and sound!!
    Next trip around the world, hope that you’ll stop along the way and post your photos of the locals and the ports!!

  • Raegan Elford
    Posted at 19:23h, 18 July Reply

    Soldier who has logged more sea time than this Navy sailor.
    What an incredible accomplishment (the journey vice logging more sea time than I)
    BZ

  • Marianne Scott
    Posted at 18:25h, 19 July Reply

    Congratulations on your accomplishment! I guess we will have to put up a plaque commemorating your voyage on the Victoria Harbour wall.

    Hope to see you this week.

    Marianne Scott

  • Tom Cory
    Posted at 07:40h, 23 July Reply

    Congradulations Bert from Annapolis MD. A Great Adventure.

  • Mark
    Posted at 12:24h, 29 July Reply

    I don’t think that anyone that attended Estevan Junior High could have imagined that this was in the future for one of it’s students. I checked in at different legs of the journey and was fascinated every time. Congrats!

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