Howdy folks, I'm in a bit of a pickle.
I set out from New Port towards Happy Bay with a few hundred pounds (kilos?) of cargo intending to layover there and then pick up some contracts going to Aestrin because I wanna play with the Brig. I set out using dead reckoning to try and keep track of my progress alongside multiple nav fixes throughout the day (daytime fixes by way of an Emerald Archipelago chronocompass, night time fixes on Milnead and Witena at their respective times, and Polaris/the north star for latitude updates), and over time the day time and night time fixes started to disagree with each other by several degrees, to the point that I don't think it's an reading error (god I hope a sextant with a proper eyepiece and a better graduated scale is in the future).
So now I'm lost in what I think is the area around Happy Bay- like, close enough that I feel like I should be able to see it, around 35N Lat, +3E Long as determined through star fixes, but my chronocompass is reading 35N Lat and more like +6E Long. Milnead and Witena nav fixes agree with each other for longitude, and a variance that big seems like it can't really be a read error. Anyone else have any experience using the Emerald Archipelago chronocompass? It seems like it's significantly more difficult to read than the Al'Ankh one is (both due to the busier crossbar supports, and the woodgrain texture on the face making it difficult to pick up the end of the pointer shadow). Also I guess any advice? Happy Bay looks like it should be a pretty easy to pick out landmass and I'm running low on provisions.
I have been studying celestial navigation for the past week and am a bit confused about the calculated sextant reading of my assumed position.
So basically, if I take a sextant reading (Hs) and correct it for the index error, dip and for the altitude and limb correction, I get the height observed (Ho), which I use to enter the tables.
However, when I get to the calculated sextant reading (Hs), then does it correspond to the (Hs) or to the (Ho) I would have gotten at the assumed position?
I am at the moment studying astronomy in the context of celestial navigation and would hope someone could explain the following:
If I get a sextant reading of the Sun (when it is not at noon) and get my line of position, then why can I not determine my exact position by simply taking a compass bearing of the Sun and drawing a straight line? Instead (if I am either sailing at a low speed or standing still) I would need to take a second reading later on in the day to get a second line of position and determine my position to be where the lines overlap.
Am I missing something with my logic of simply taking the bearing of the first sighting and draw a straight line from that point to my line of position?
Starting at 10:50, if you look in the mirror above the fireplace in the Mural Room, you can see the lower body of the cameraman (and what I'm assuming is the cable guy behind him) and watch him as he pans the camera around and steps backwards out of the room in front of Martin Sheen. I notice something new every rewatch.
I am doing a project on celestial navigation and i am trying to learn about it. I was wondering why do we use 1/6th of a circle only why not some other angle? Is it because the reflection increases the spread to 120 degrees. Also isn't the higher angles causes more errors in the calculation like making the positional arc smaller so we can't approximate it to a line.
I've been a fan of the show basically my entire life and rewatch at least some portion twice a year plus whenever I'm down. I was holding off on the podcast until they had done the whole series so I could binge it with or without a rewatch.
I've just gotten to TWWW episode on Celestial Navigation and it's honestly enough to want to abandon the entire podcast. Listening to Malina say that because he didn't see the racism, he can't believe it, is so troubling as a Black woman and it surprises me there weren't posts in this subreddit or the one for the podcast about it.
Their recording obviously predates this past summer of unrest due to racism in policing but it's not like that's a new issue in America. The episode is from 2016; it wasn't that long ago! But hearing someone who prides themself on being a good Democrat saying that without video evidence, he's just not sold it was a bad arrest hurts. It's just a reminder that without footage of police commiting acts of injustice, even self proclaimed liberals will be quick in their defense of a system that proves its own intolerance daily.
I know a lot of this subreddit is white and a lot of viewers, when the show originally aired and now re/watching are white and have perhaps recently learned that we didn't solve racism in 1965. But please know that when you say you need video evidence to believe Black (edit: and all POC) people that the cops were racist, the arrest was bad, the shooting was unjust, you are gaslighting the endless victims of these crimes against their humanity, dignity, and freedom.
And obviously that's not the fault of Malina, but that attitude is so apathetic to the unending BI&POC who face these issues everyday of our lives.
Do seafarers know well celestial navigation or they just pray that they won't ever gonna need it?
Does anyone know any good online course for celestial navigation/astronavigation? I received my country's equivalent of the yachtmaster, but would like to delve deeper into the topic on a theoretical basis during the second lockdown. English, dutch or german courses would be fine. Any help would be greatly appreciated, thanks in advance!
I've been looking for a practical celestial navigation book for the intent of camping and hiking, I can only find advanced sailing type of content though, do you guys know any reading that could help me?
The stars in Scum are really spectacular, and I think I might be able to see Orion's Belt, but not sure.
Is scums sky representing the actual night sky?
If so, from where?
If not, why the hell not?
What a great pick me up from the current state of the world.
CJs woot canaw
“C.J., so help me if you use the words “Pwesident” or “bwiefed” again.”
The entire scene in the Oval Office at the end.
“If anyone asks, you quit smoking years ago and the cigarette you bummed off Air Force one was for a friend.”
“Get out.”
I was giggling to myself the whole time at 3am.
Hi All!
I'm looking to get going on sailing lessons and certification in the spring. I'd like to take care of some "off-the-boat" skills until then. Knot tying I have down, but I want to get into celestial navigation. I'm the type of person who likes to get down to the very basics of a thing, so while I'll have GPS and backup GPS for sure, I want to have manual experience. Are there any recommended online courses or books?
Thanks so much!
Edit* Thank you for the fast and varied responses!
I wonder if they are obsolete now or not?
I'm interested in eventually learning to use a sextant to determine position and heading over the earth's surface, but initially what I want to do is memorize stars, constellations, their movement patterns, and how to recognize them at different times of the year. Got any book recs for a beginner?
I am at the moment studying astronomy in the context of celestial navigation and would hope someone could explain the following:
If I get a sextant reading of the Sun (when it is not at noon) and get my line of position, then why can I not determine my exact position by simply taking a compass bearing of the Sun and drawing a straight line? Instead (if I am either sailing at a low speed or standing still) I would need to take a second reading later on in the day to get a second line of position and determine my position to be where the lines overlap.
Am I missing something with my logic of simply taking the bearing of the first sighting and apply that knowledge to locate myself on the line of position?
I've been looking for a practical celestial navigation book for the intent of camping and hiking, I can only find advanced sailing type of content though, do you guys know any reading that could help me?
I've been looking for a practical celestial navigation book for the intent of camping and hiking, I can only find advanced sailing type of content though, do you guys know any reading that could help me?
